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Effects of normobaric cyclic hypoxia exposure on mesenchymal stem-cell differentiation–pilot study on bone parameters in elderly

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World Journal of Stem Cells 2020年第12期12卷 1667-1690页

作者： Marta Camacho-Cardenosa JoséManuel Quesada-Gómez Alba Camacho-Cardenosa Alejo Leal GabrielDorado Bárbara Torrecillas-Baena Antonio Casado-Díaz Facultad Ciencias del deporte Universidad De ExtremaduraCáceres 10003Spain CIBER de Fragilidad Y Envejecimiento Saludable(CIBERFES) Unidad De Gestión Clínica De Endocrinología Y NutriciónInstituto Maimónides De Investigación Biomédica De CórdobaHospital Universitario Reina SofíaCórdoba 14004Spain Servicio de Traumatología Hospital de CáceresCáceres 10004Spain departamento Bioquímica y Biología Molecular Campus Rabanales C6-1-E17Campus de Excelencia Internacional Agroalimentario(ceiA3)Universidad de Córdoba-CIBERFES14071 CórdobaSpain

BACKGROUND Mesenchymal stem cells(MSC)of bone marrow are the progenitor of osteoblasts and *** tend to differentiate into adipocytes,instead of osteoblasts,with *** favors the loss of bone mass and development of *** induces hypoxia inducible factor 1αgene encoding transcription factor,which regulates the expression of genes related to energy metabolism and *** allows a better adaptation to low O2 *** hypoxia has negative effects on bone metabolism,favoring bone ***,surprisingly,cyclic hypoxia(CH),short times of hypoxia followed by long times in normoxia,can modulate MSC differentiation and improve bone health in *** To evaluate the CH effect on MSC differentiation,and whether it improves bone mineral density in *** MSC cultures were induced to differentiate into osteoblasts or adipocytes,in CH(3%O2 for 1,2 or 4 h,4 d a week).Extracellular-matrix mineralization and lipid-droplet formation were studied in MSC induced to differentiate into osteoblast or adipocytes,*** addition,gene expression of marker genes,for osteogenesis or adipogenesis,have been quantified by quantitative real time polymerase chain *** in vivo studies with elderly(>75 years old;n=10)were carried out in a hypoxia chamber,simulating an altitude of 2500 m above sea level,or in normoxia,for 18 wk(36 CH sessions of 16 min each).Percentages of fat mass and bone mineral density from whole body,trunk and right proximal femur(femoral,femoral neck and trochanter)were assessed,using dual-energy X-ray *** CH(4 h of hypoxic exposure)inhibited extracellular matrix mineralization and lipid-droplet formation in MSC induced to differentiate into osteoblasts or adipocytes,***,both parameters were not significantly affected by the other shorter hypoxia times *** longest periods of hypoxia downregulated the expression of genes related to extracellular matrix

关键词： Normobaric cyclic hypoxia Mesenchymal stem cells Cellular differentiation Osteoblasts Adipocytes Bone health

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New perspectives in the management of small cell lung cancer

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World Journal of Clinical oncology 2022年第6期13卷 429-447页

作者： Cristina Pangua Jacobo Rogado Gloria Serrano-Montero JoséBelda-Sanchís BeatrizÁlvarez Rodríguez Laura Torrado Nuria Rodríguez de Dios Xabier Mielgo-Rubio Juan Carlos Trujillo Felipe Couñago department of Medical oncology Hospital Universitario Infanta LeonorMadrid 28031Spain department of Thoracic Surgery Hospital de la Santa Creu i Sant Pau&Hospital de MarUniversitat Autònoma de BarcelonaBarcelona 08041CataloniaSpain department of Radiation oncology Hospital Universitario HM SanchinarroHM HospitalesHM CIOCC Centro Integral Oncológico Clara CampalMadrid 28050Spain department of Radiation oncology Hospital Universitario Lucus Augusti&Instituto de Investigación Sanitaria Santiago de Compostela(IDIS)Lugo 27003Spain department of Radiation oncology Hospital Del Mar&Hospital Del Mar Medical Research Institute(IMIM)&Pompeu Fabra UniversityBarcelona 08003CataloniaSpain department of Medical oncology Alcorcón Foundation University HospitalAlcorcón 28922MadridSpain department of Thoracic Surgery Hospital de la Santa Creu i Sant PauBarcelona 08029Spain department of Radiation oncology Hospital Universitario Quirónsalud MadridHospital La LuzUniversidad Europea de MadridMadrid 28223Spain

The treatment of small cell lung cancer(SCLC)is a challenge for all specialists *** treatments have been added to the therapeutic armamentarium in recent months,but efforts must continue to improve both survival and quality of *** in surgery and radiotherapy have resulted in prolonged survival times and fewer complications,while more careful patient selection has led to increased staging *** in the field of systemic therapy have resulted in changes to clinical guidelines and the management of patients with advanced disease,mainly with the introduction of *** this article,we describe recent improvements in the management of patients with SCLC,review current treatments,and discuss future lines of research.

关键词： Small cell lung cancer Whole-brain radiotherapy Prophylactic cranial irradiation Stereotactic body radiotherapy Immunotherapy Atezolizumab Durvalumab

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Benefits of a root fungal endophyte on physiological processes and growth of the vulnerable legume tree Prosopis chilensis(Fabaceae)

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Journal of Plant Ecology 2019年第2期12卷 264-271页

作者： Marcia González-Teuber Alejandro Urzúa Andrea Morales Cristian Ibáñez Luisa Bascuñán-Godoy Max Planck Partner Group Departamento de Ciencias del AmbienteUniversidad de Santiago de ChileAv.Libertador Bernardo O'Higgins 3363SantiagoChile instituto de Investigación Multidisciplinario en Ciencias y Tecnología Universidad de La SerenaAv.Raúl Bitrán 1305La SerenaChile Laboratorio de Química Ecológica Universidad de Santiago de ChileAv.Libertador Bernardo O'Higgins 3363SantiagoChile departamento de Biología Universidad de La SerenaAv.Raúl Bitrán 1305La SerenaChile departamento de Botánica Universidad de ConcepciónBarrio Universitario s/nConcepciónChile

Aims desertification is a major concern in arid and semi-arid regions *** interactions between vulnerable plant spe-cies and associated microbial symbionts may have important appli-cations for conservation and restoration strategies in affected *** In this study,we evaluated the root-associated fungal endophyte community in Prosopis chilensis,a vulnerable and threatened arid-adapted tree of northern *** benefits in terms of physiologi-cal performance and plant growth were also *** fungi were isolated from asymptomatic roots by the culture method for molecular identification of the 18S rRNA *** dominant fungal endophyte(Penicillium sp.)in the community was later used in inoculation experiments to assess its effect on maximum quan-tum efficiency of photosystem II(_(PSII)),(Fv/Fm)actual _(PSII) efficiency(Φ_(PSII)),and non-photochemical quenching(NPQ).Total sugars,starch content,malonaldehyde(MDA),nitrogen content(%)and growth traits were also *** Findings WhereasΦ_(PSII) increased significantly in endophyte-inoculated plants,NPQ was found to *** effect of endophyte inocula-tion on sugars and MDA was detected,but starch content,leaf nitro-gen content,number of leaves and shoot biomass were found to *** revealed that inoculation of endophytic Penicillium fungal isolate can provide significant physiological benefits to the host plant *** presence resulted in greater _(PSII) efficiency and higher leaf nitrogen and carbohydrate content,enhancing host plant *** findings highlight the importance of consider-ing the fungal endophyte community of this vulnerable species as an important tool to the design of further revegetation and conserva-tion programs.

关键词： root endophytic fungi PSII efficiency nitrogen content plant growth promotion starch accumulation arid habitats

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EEG Correlations during WCST Performance in Female Adolescents with Sexual Abuse-Related Post-Traumatic Stress Disorder

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Journal of Behavioral and Brain Science 2015年第7期5卷 239-250页

作者： Lucía Ester Rizo-Martínez Araceli Sanz-Martin Miguel ángel Guevara Marisela Hernández-González Olga Inozemtseva Francisco Abelardo Robles-Aguirre instituto de Neurociencias CUCBA Universidad de Guadalajara Guadalajara México Centro universitario del Norte Universidad de Guadalajara Colotlán México

Child sexual abuse (CSA) survivors can present post-traumatic stress disorder (PTSD) and alterations in EEG activity and cognition. The aim of this study was to evaluate EEG correlations in female adolescents with CSA-related PTSD during performance of the Wisconsin Card-Sorting Test (WSCT). Inter- and intrahemispheric EEG correlations (INTERr and INTRAr) of those subjects were calculated at rest and during performance of WCST. On this task, the PTSD group obtained higher scores than the control group for the number of correct responses and failure to maintain set. In the between-groups comparisons, the PTSD group presented a higher INTERr between frontal areas in the gamma and slow bands, as well as a higher correlation in the delta band at Fp1-F3;however, this group presented a lower INTRAr between Fp1-P3 and Fp2-P4 in the theta and alpha1 bands. In the comparison between conditions, the PTSD group presented an increased correlation during execution of the WCST, mainly in the gamma band, while the control group showed a decrease of INTRAr in the slow bands. Results are discussed with respect to the influence of CSA- related PTSD on the development of cognition and functional connectivity in the brain.

关键词： Child Sexual Abuse Post-Traumatic Stress Disorder EEG Correlation WCST Adolescents

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HOP co-chaperones contribute to GA signaling by promoting the accumulation of the F-box protein SNE in Arabidopsis

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Plant Communications 2023年第3期4卷 244-257页

作者： Silvina Mangano Alfonso Muñoz Lourdes Fernández-Calvino M.Mar Castellano Centro de Biotecnología y Genómica de Plantas Universidad Politécnica de Madrid(UPM)-Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria(INIA/CSIC)Campus Montegancedo UPM28223 Pozuelo de Alarcón(Madrid)Spain Fundación instituto Leloir and instituto de Investigaciones Bioquímicas de Buenos Aires(IIBA CONICET)Av.Patricias Argentinas 435Buenos Aires C1405BWEArgentina departamento de Botánica Ecologíay Fisiología VegetalCampus de RabanalesEdificio Severo OchoaUniversidad de Córdoba14071 CórdobaSpain

Gibberellins(GAs)play important roles in multiple developmental processes and in plant response to the *** the GA pathway,a central regulatory step relies on GA-dependent degradation of the delLA transcriptional ***,the relevance of the stability of other key proteins in this pathway,such as SLY1 and SNE(the F-box proteins involved in delLA degradation),remains ***,we take advantage of mutants in the HSP70-HSP90 organizing protein(HOP)co-chaperones and reveal that these proteins contribute to the accumulation of SNE in ***,HOP proteins,along with HSP90 and HSP70,interact in vivo with SNE,and SNE accumulation is significantly reduced in the hop ***,greater accumulation of the delLA protein RGA is observed in these *** agreement with these molecular phenotypes,hop mutants show a hypersensitive response to the GA inhibitor paclobutrazol and display a partial response to the ectopic addition of GA when GA-regulated processes are *** mutants also display different phenotypes associated with alterations in the GA pathway,such as reduced germination rate,delayed bolting,and reduced hypocotyl elongation in response to warm ***,ectopic overexpression of SNE reverts the delay in germination and the thermally dependent hypocotyl elongation defect of the hop1 hop2 hop3 mutant,revealing that SNE accumulation is the key aspect of the hop mutant ***,these data reveal a pivotal role for HOP in SNE accumulation and GA signaling.

关键词： HSP70-HSP90 organizing protein seed germination thermomorphogenesis RGA protein folding protein stability

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Neuropsychological and Electrophysiological Evaluation after Rape: A Case Study of a Teenage Girl

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Journal of Behavioral and Brain Science 2014年第6期4卷 256-267页

作者： Lucía Ester Rizo-Martínez Miguel ángel Guevara Luis Francisco Cerdán Francisco Abelardo Robles-Aguirre Araceli Sanz-Martin Marisela Hernández-González Centro universitario del Norte Universidad de Guadalajara Colotlán México instituto de Neurociencias CUCBA Universidad de Guadalajara Guadalajara Jalisco México

Although rape is an event with a high incidence worldwide, there is currently no single consensus about both the general effects and the diagnosis and treatment of this. To evaluate the consequences of rape, a teenage girl was evaluated at two moments: a month-and-a-half and then a year-and-a-half after being raped. Clinical measurements, neuropsychological testing and electroencephalographic recording (EEG) were conducted in four conditions: eyes closed, eyes open, and during performance of two tasks: Towers of Hanoi and Wisconsin. Observations showed subsyndromal symptoms of post-traumatic stress on the first evaluation, and close-to-normal scores on the neuropsychological and cognitive tests in both assessments. decreased cortical EEG synchronization, mainly in the fast frequencies and in almost all conditions, was obtained in the second evaluation. The results obtained in this study may indicate an early development in the brain, which is discussed in light of current literature on this topic.

关键词： Rape Adolescence EEG Clinical Evaluation Neuropsychological Testing

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Pretreatment inflammatory indices predict Bevacizumab response in recurrent Glioma

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Cancer Drug Resistance 2020年第3期3卷 623-635页

作者： Alicia Martínez-González Raquel Cabrera Marta Lloret Pedro C.Lara department de Matemáticas Universidad de Castilla-La ManchaETSI IndustrialesAvdaCiudad Real 13071Spain. oncología Radioterápica Hospital universitario de Gran Canaria Dr Negrin Barranco de la Ballena s/nLas Palmas de Gran CanariaLas Palmas 35010Spain. Facultad de Ciencias de la Salud Universidad de Las Palmas de Gran CanariaPaseo de Blas Cabrera Felipes/nLas Palmas de Gran CanariaLas Palmas 35016Spain. Fundación Canaria del instituto Canario de Investigación del Cáncer Avda de la Trinidad 61 Torre Agustín Arevalo 7 planta La LagunaSanta Cruz de Tenerife 38204Spain. San Roque University Hospitals Dolores de la Rocha5Las Palmas de Gran CanariaLas Palmas 35001Spain. Fernando Pessoa Canarias University Dolores dela Rocha 14Las Palmas de Gran CanariaLas Palmas 35016Spain.

Aim:It remains unclear what the best therapeutic option for recurrent glioma patients after Stupp treatment ***(BVZ)is commonly administered in progression,but it appears that only some patients *** would be useful to find biomarkers that determine beforehand who these patients ***:The protocol included 31 high-risk progressing glioma patients after Stupp treatment who received BVZ 5-10 mg/kg every 14 days and temozolomide(3-19 cycles,150-200 mg five days each 28-day cycle)during a mean of eight cycles of BVZ or until tumor progression or unacceptable *** analyzed the clinical outcome values of inflammatory indices measured before BVZ ***:Lymphocyte level before BVZ administration was the best independent predictor of overall survival(HR=0.34;95%CI:0.145-0.81;P=0.015).The area under the receiver operating characteristic(ROC)curve was 0.823,with 1.645 being the optimal cut-off value,and 0.80 and 0.85 the sensitivity and specificity values,*** and non-responder survival curves were also significantly different,considering the first and second tertiles as cut-off *** number of BVZ cycles was not related to *** neutrophil platelet levels,platelet-to-lymphocyte ratio(PLR),and neutrophil-to-lymphocyte ratio(NLR)did not have independent predictive *** variables were not correlated with each ***,patients with high NLR and PLR simultaneously(double positive PLR-NLR)showed a worse clinical outcome than the rest(P=0.043).Conclusion:Pretreatment lymphocyte levels and double positive PLR-NLR could be used as non-invasive hematological prognostic markers for recurrent gliomas treated with bevacizumab.A close relationship emerged between inflammation and angiogenesis.

关键词： Recurrent glioma bevacizumab predictive biomarker inflammatory indices lymphocytes

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Infrared fluorescence imaging of infarcted hearts with A@S nanodots

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Nano Research 2019年第4期12卷 749-757页

作者： Dirk H. Ortgies Angel Luis Garcia-Villalon Miriam Granado Sara Amor Emma Martin Rodriguez Harrisson DA Santos Jingke Yao Jorge Rubio-Retama Daniel Jaque Nanobiology Group Instituto Ramon y Cajal de Investigacion Sanitaria IRYCIS Ctra. Colmenar km. 9.100 Madrid 28034 Spain Fluorescence Imaging Group Departamento de Fisica de Materiales - Facultad de Ciencias Universidad Autonoma de Madrid C/ Francisco Tomas y Valiente 7 Madrid 28049 Spain Fluorescence Imaging Group Departamento de Fisiologia - Facultad de Medicina Avda. Arzobispo Morcillo 2 Universidad Autonoma de Madrid Madrid 28029 Spain Fluorescence Imaging Group Departamento de Fisica Aplicada - Facultad de Ciencias Universidad Autonoma de Madrid C/ Francisco Tomas y Valiente 7 Madrid 28049 Spain Grupo de Nano-Fotonica e Imagens Instituto de Fisica Universidade Federal de Alagoas Maceio-AL 57072-900 Brazil departamento de Quimica Fisica en Ciencias Farmaceuticas Facultad de Farmacia Plaza de Ramon y Cajal s/n Universidad Complutense de Madrid Madrid 28040 Spain

Ag2S nano dots have already bee n dem onstrated as promisi ng n ear-i nfrared (NIR-II, 1.0-1.45 pm) emitting nan oprobes with low toxicity, high penetration and high resolution for in vivo imaging of, for example, tumors and vasculature. In this work, we have systematically investigated the pote ntial applicati on of function alized Ag2S nano dots for accurate imaging of damaged myocardium tissues after a myocardial in farction in duced by either partial or global ischemia. Ag2S nano dots surface-function alized with the an giote nsin II peptide (ATI I) have show n over 10-fold enhanced binding efficiency to damaged tissues than non-specifically (PEG) functionalized Ag2S nanodots due to their interaction with the upregulated angiotensin II receptor type I (AT1R). It is demonstrated how the NIR-II images generated by ATII-functionalized Ag2S nanodots contain valuable information about the location and extension of damaged tissue in the myocardium allowing for a proper identification of the occluded artery as well as an in direct evaluati on of the damage level. The pote ntial applicati on of Ag2S nano dots in the n ear future for in vivo imaging of myocardial infarction was also corroborated by performing proof of concept whole body imaging experiments.

关键词： infrared imaging myocardial infarct Ag2S nanodots biological windows Langendorff heart

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Anti-inflammatory effects of Mangifera indica *** in a model of colitis

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World Journal of Gastroenterology 2010年第39期16卷 4922-4931页

作者： Lucía Márquez Beatriz G Pérez-Nievas Icíar Gárate Borja García-Bueno José LM Madrigal Luis Menchén Gabino Garrido Juan C Leza department of Pharmacology School of MedicineUniversity Complutense and Centro de Investigación en Red de Salud Mental(CIBERSAM) Pharmaceutical Chemistry Center and University of La Habana Health Research Institute Hospital 12 de Octubre(I+12) Gastroenterology Service Hospital General Universitario Gregorio Maraón and CIBEREHD department of Chemistry and Pharmacy University Católica del Norte

AIM:To investigate the effect of aqueous extract from Mangifera indica L.(MIE)on dextran sulfate sodium (DSS)-induced colitis in ***:MIE(150 mg/kg)was administered in two different protocols:(1)rectally,over 7 d at the same time as DSS administration;and(2)once daily over 14 d (by oral gavage,7 d before starting DSS,and rectally for 7 d during DSS administration).General observations of clinical signs were ***-inflammatory activity of MIE was assessed by myeloperoxidase(MPO)activity. Colonic lipid peroxidation was determined by measuring the levels of thiobarbituric acid reactive substances (TBARS).Reduced glutathione(GSH)levels,expression of inflammatory related mediators[inducible isoforms of nitric oxide synthase(iNOS)and cyclooxygenase (COX)-2,respectively]and cytokines[tumor necrosis factor(TNF)-αand TNF receptors 1 and 2]in colonic tissue were also ***(IL)-6 and TNF-α serum levels were also measured. RESULTS:The results demonstrated that MIE has anti-inflammatory properties by improvement of clinical signs,reduction of ulceration and reduced MPO activity when administered before *** addition,administration of MIE for 14 d resulted in an increase in GSH and reduction of TBARS levels and iNOS,COX-2, TNF-αand TNF R-2 expression in colonic tissue,and a decrease in IL-6 and TNF-αserum levels. CONCLUSION:MIE has anti-inflammatory activity in a DSS-induced rat colitis model and preventive administration(prior to DSS)seems to be a more effective protocol.

关键词： Oxidative stress Ulcerative colitis Inflammation Polyphenols Mangifera indica Antioxidants

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Evolution of Cervical Lesions Associated with Human Papillomavirus Infection after the Introduction of Vaccination

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Open Journal of Obstetrics and Gynecology 2023年第8期13卷 1307-1323页

作者： Montserrat de la Torre Ana María Colino Lone Nielsen Alejandro Pascual Concepción Millana María Jesús González Patricia Barreiro Eva Rodríguez Dolores García Aranzazu Gómez Rosa Rodero María Jesús Fernández department of Surgical Pathology Hospital Clínico San Carlos Madrid Spain department of Surgical Pathology Hospital Universitario del Sureste Madrid Spain Grupo de Investigación en Anatomía Patológica Hospital Clínico San Carlos Instituto de Investigación Sanitaria Hospital Clínico San Carlos Madrid Spain department of Legal Medicine Psychiatry and Surgical Pathology Complutense University of Madrid Madrid Spain

Background: The main objective of this study is to analyse the change in the type of lesions developed by HPV-infected patients after the introduction of the vaccine in three different periods;2002-2006 (years previous to the implementation of the vaccine in Spain), 2009-2011 (shortly after the vaccination) and 2020-2021 (years where the vaccine was well established) at a single hospital. Methods: This is an observational, descriptive, retrospective study based on the review of the results of the biopsies of patients with HPV lesions at a single large tertiary hospital, Hospital Clínico San Carlos, in Madrid, Spain. We have collected the data from three different time periods: 2002-2006, 2009-2011, 2020-2021 to try to understand the potential changes in these lesions after vaccine introduction. Results: In this time we have reviewed the data from 946 women. In these three periods, a decreasing trend in the rate of squamous cell carcinoma was noted, the rate of adenocarcinoma remains stable, and the rate of cervical intraepithelial neoplasia grades 2 - 3 (CIN 2-3) lesions shows an increasing trend. We have also found a change in the mean ages of the patients with these lesions, as this increased in the three lesions caused by HPV after the implementation of the vaccine. Our study indicates that the identification of other high risk serotypes, apart from 16 and 18, as well as those with indeterminate risk, has undergone a progressive increase, increasing from 24.24% and 14.11% respectively in 2002-2006 to 40.42% and 28.34% in 2020-2021. Conclusion: Our study confirms the effectiveness of the vaccines developed so far, against the HPV serotypes they contain. This is demonstrated by the evidence, in our population, of a decrease in the incidence of squamous cell carcinoma in uterine cervix. In parallel, an increase in the mean age of diagnosis has been verified, for both squamous cell carcinoma and its CIN 2-3 precursor lesions, as well as a change in the infective tren

关键词： HPV Serotypes Cervix Vaccine CIN 2 - 3 Squamous Cell Carcinoma Women’s Health

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