全文获取类型
收费全文 | 195729篇 |
免费 | 11876篇 |
国内免费 | 546篇 |
专业分类
耳鼻咽喉 | 2462篇 |
儿科学 | 6316篇 |
妇产科学 | 4116篇 |
基础医学 | 26727篇 |
口腔科学 | 8106篇 |
临床医学 | 14662篇 |
内科学 | 44087篇 |
皮肤病学 | 5063篇 |
神经病学 | 17052篇 |
特种医学 | 6062篇 |
外国民族医学 | 29篇 |
外科学 | 23988篇 |
综合类 | 1519篇 |
现状与发展 | 1篇 |
一般理论 | 70篇 |
预防医学 | 19447篇 |
眼科学 | 3623篇 |
药学 | 12307篇 |
中国医学 | 741篇 |
肿瘤学 | 11773篇 |
出版年
2023年 | 1042篇 |
2022年 | 2018篇 |
2021年 | 4699篇 |
2020年 | 2952篇 |
2019年 | 4187篇 |
2018年 | 5669篇 |
2017年 | 4175篇 |
2016年 | 4021篇 |
2015年 | 4716篇 |
2014年 | 6411篇 |
2013年 | 8131篇 |
2012年 | 12569篇 |
2011年 | 13069篇 |
2010年 | 6756篇 |
2009年 | 5966篇 |
2008年 | 10109篇 |
2007年 | 10668篇 |
2006年 | 9907篇 |
2005年 | 10181篇 |
2004年 | 9473篇 |
2003年 | 8606篇 |
2002年 | 6590篇 |
2001年 | 5457篇 |
2000年 | 5441篇 |
1999年 | 4784篇 |
1998年 | 1741篇 |
1997年 | 1457篇 |
1996年 | 1427篇 |
1995年 | 1207篇 |
1994年 | 1211篇 |
1993年 | 1082篇 |
1992年 | 2962篇 |
1991年 | 2806篇 |
1990年 | 2573篇 |
1989年 | 2524篇 |
1988年 | 2268篇 |
1987年 | 2107篇 |
1986年 | 1989篇 |
1985年 | 1897篇 |
1984年 | 1369篇 |
1983年 | 1093篇 |
1982年 | 620篇 |
1981年 | 565篇 |
1980年 | 541篇 |
1979年 | 1007篇 |
1978年 | 647篇 |
1977年 | 523篇 |
1975年 | 582篇 |
1974年 | 593篇 |
1973年 | 592篇 |
排序方式: 共有10000条查询结果,搜索用时 234 毫秒
81.
Maite Cruz Piqueras Ainhoa Rodríguez García de Cortazar Joaquín Hortal Carmona Javier Padilla Bernáldez 《Gaceta sanitaria / S.E.S.P.A.S》2019,33(1)
Objective
To analyse and understand vaccination hesitancy discourses, particularly those of people who have decided not to vaccinate their sons and daughters.Methods
Qualitative study of five individual interviews and two focus groups with people who chose not to vaccinate their children in the province of Granada (Spain).Results
Mothers and fathers manifest a system of health beliefs different to the biomedical paradigm. From an ethical point of view, they justify their position based on the right to autonomy and responsibility for their decisions. Alleged specific reasons: they doubt administration of several vaccines simultaneously at an early age in a systematic way and without individualising each case; they fear adverse effects and do not understand the variations of the vaccination schedule.Conclusions
These vaccination hesitancy discourses respond to the individual vs collective conflict; parents defend their right to bring up their children without any interference from the state and focus their responsibility on the individual welfare of their sons and daughters, regardless of the consequences that their actions might have on the collective. In their management of risks, they consider those derived from vaccination more relevant than the individual or collective consequences of not doing so. The vaccines generating most doubts are the more controversial ones within the scientific world. Transparency in communication of adverse effects; authorities respect for other health/disease concepts; banishment of the term “anti-vaccines” from the media and scientific vocabulary, and developing spaces for dialogue are bridges to be built. 相似文献82.
Rosario Fernández-Plata Rogelio Pérez-Padilla Rodrigo Del Río-Hidalgo Cecilia García-Sancho Laura Gochicoa-Rangel Christian Rodríguez-Hernández Luis Torre-Bouscoulet David Martínez-Briseño 《Archivos de bronconeumología》2019,55(10):513-518
IntroductionPeople with Down syndrome (DS) have high respiratory morbidity, evaluating their respiratory health with standardized, objective tests is desirable. Thus, the objective of this study was to evaluate the technical quality of Pulmonary Function Tests (PFTs) to determine which ones are most suitable for this population.MethodsParticipants included children, teenagers and adults with DS, 5 years of age or older (n = 302). The technical quality of the impulse oscillometry system (IOS), forced spirometry, lung-diffusing capacity for carbon monoxide (DLCO), and 6-min walk test (6MWT) were analyzed by age group. Capnography and pulse oximetry were included in the study. Technical quality was determined on the basis of current international PFTs standards.ResultsFifty-one percent of participants were males. A total of 184 participants (71%) who completed the IOS fulfilled the quality criteria, while 210 (70%) completed the 6MWT. Performance on forced spirometry and DLCO was poor. All pulse oximetries and 96% percent heart rates obtained had good quality, but exhaled carbon dioxide (PetCO2) and respiratory rate (RR) showed deficient repeatability.ConclusionsIOS appears to be the most reliable instrument for evaluating lung mechanics in individuals with DS. 相似文献
83.
Amanda Leal Rocha Alessandra Figueiredo De Souza Laiz Fernandes Mendes Nunes Nayara Dias de Souza Cunha Clia Regina Moreira Lanza Denise Vieira Travassos Tarcília Aparecida da Silva 《Pediatric dermatology》2019,36(1):e27-e30
Drug‐induced reactions are complications associated with high mortality and significant morbidity. Stevens–Johnson Syndrome (SJS) and toxic epidermal necrolysis (TEN) are examples of these conditions, which are characterized by skin and mucous lesions. Here, we report a case of a 9‐year‐old girl who presented with blisters associated with an extensive vesicular rash and multiple ulcerations on the lips and oral cavity. A drug‐induced hypersensitivity reaction to antibiotics was suspected, and a diagnosis of TEN was made. The patient was managed with withdrawal of the suspected causative agent, and the oral lesions were treated with low‐level laser therapy (LLLT) and oral hygiene. This case highlights that TEN requires interdisciplinary intervention with dental assistance and follow‐up to improve symptoms, nutrition, systemic condition, and quality of life. 相似文献
84.
85.
86.
María Cabrerizo Gloria Trallero María José Pena Amaia Cilla Gregoria Megias Carmen Mu?oz-Almagro Eva Del Amo Diana Roda Ana Isabel Mensalvas Antonio Moreno-Docón Juan García-Costa Nuria Rabella Manuel Ome?aca María Pilar Romero Sara Sanbonmatsu-Gámez Mercedes Pérez-Ruiz María José Santos-Mu?oz Cristina Calvo And the study group of “Enterovirus parechovirus infections in children under ?years-old Spain” PI- 《European journal of pediatrics》2015,174(11):1511-1516
87.
Background Context
Long-term follow-up of patient-reported outcome measures (PROM) is essential in both modern spinal care and research. Lack of time and staff are commonly reported barriers to implementing long-term follow-up of PROM. Automated and digital follow-up systems for PROM collection are seeing widespread use, yet their validity and comparative effectiveness have never been evaluated.Purpose
The present study aimed to assess the validity of digital follow-up systems in comparison with the conventional paper-based follow-up (PB-FU).Study Design
This is a retrospective analysis of prospectively collected double follow-up data.Patient Sample
Patients who underwent lumbar spinal fusion for spondylolisthesis or degenerative disc disease between 2013 and 2016 were included in the study.Outcome Measures
The study determined the Oswestry Disability Index (ODI) and Numeric Rating Scale (NRS) for back and leg pain severity at baseline, 6 weeks, 12 months, and 24 months.Materials and Methods
After lumbar spinal fusion surgery, a double follow-up of PROM was carried out by conventional PB-FU during clinical visits, while simultaneously completing an automatically dispatched digital follow-up questionnaire. As the primary end point, we assessed the intraindividual discrepancy in PROM between PB-FU and automated digital follow-up (AD-FU).Results
Forty patients completed all parts of the dual follow-up trajectory and were analyzed. We detected no discrepancy in ODI or NRS for back and leg pain severity at any of the baseline, 6-week, 12-month, or 24 month follow-ups (all p>.05). This was confirmed in a sensitivity analysis.Conclusions
In an analysis of dual paper-based and digital follow-up after lumbar fusion surgery, patients report highly similar values using either method of follow-up. It appears that AD-FU without incentives produces lower response rates. To reassess the validity of these systems for data collection in spinal patient care, a prospective validation with higher statistical power is warranted. 相似文献88.
Suzanne Maman Lusajo Kajula Peter Balvanz Mrema Kilonzo Marta Mulawa Thespina Yamanis 《Global public health》2016,11(10):1202-1215
Gender inequality is at the core of the HIV patterns that are evident in sub-Saharan Africa. Gender-based violence (GBV) and lack of economic opportunity are important structural determinants of HIV risk. We piloted a microfinance and health promotion intervention among social networks of primarily young men in Dar es Salaam. Twenty-two individuals participated in the microfinance component and 30 peer leaders were recruited and trained in the peer health leadership component. We collected and analysed observational data from trainings, monitoring data on loan repayment, and reports of peer conversations to assess the feasibility and acceptability of the intervention. Eighteen of the loan recipients (82%) paid back their loans, and of these 15 (83%) received a second, larger loan. Among the loan defaulters, one died, one had chronic health problems, and two disappeared, one of whom was imprisoned for theft. The majority of conversations reported by peer health leaders focused on condoms, sexual partner selection, and HIV testing. Few peer leaders reported conversations about GBV. We demonstrated the feasibility and acceptability of this innovative HIV and GBV prevention intervention. The lessons learned from this pilot have informed the implementation of a cluster-randomised trial of the microfinance and peer health leadership intervention. 相似文献
89.
90.
Jeroen M. van de Pol Jurjen G. Geljon Svetlana V. Belitser Geert W.J. Frederix Anke M. Hövels Marcel L. Bouvy 《Research in social & administrative pharmacy》2019,15(1):70-76