首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   98303篇
  免费   11236篇
  国内免费   683篇
耳鼻咽喉   455篇
儿科学   2909篇
妇产科学   2110篇
基础医学   4480篇
口腔科学   2355篇
临床医学   28213篇
内科学   13758篇
皮肤病学   754篇
神经病学   5169篇
特种医学   1180篇
外国民族医学   7篇
外科学   7670篇
综合类   8320篇
一般理论   65篇
预防医学   19378篇
眼科学   447篇
药学   7060篇
  167篇
中国医学   1886篇
肿瘤学   3839篇
  2024年   324篇
  2023年   3015篇
  2022年   3903篇
  2021年   5407篇
  2020年   5727篇
  2019年   5687篇
  2018年   5434篇
  2017年   5176篇
  2016年   4732篇
  2015年   4478篇
  2014年   7754篇
  2013年   8728篇
  2012年   5894篇
  2011年   5985篇
  2010年   4503篇
  2009年   4469篇
  2008年   4135篇
  2007年   4099篇
  2006年   3511篇
  2005年   2969篇
  2004年   2437篇
  2003年   1929篇
  2002年   1513篇
  2001年   1372篇
  2000年   1125篇
  1999年   937篇
  1998年   819篇
  1997年   659篇
  1996年   569篇
  1995年   427篇
  1994年   400篇
  1993年   355篇
  1992年   291篇
  1991年   244篇
  1990年   207篇
  1989年   156篇
  1988年   144篇
  1987年   134篇
  1986年   92篇
  1985年   115篇
  1984年   87篇
  1983年   57篇
  1982年   52篇
  1981年   40篇
  1980年   38篇
  1979年   23篇
  1978年   14篇
  1977年   16篇
  1976年   11篇
  1975年   12篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
101.
102.
103.
ObjectiveTo present, the process of development and evaluation of an educational software on the Child Health Handbook proposed for the continuing education of primary care nurses and physicians.MethodsQuantitative study of methodological development. For software development, the following steps were followed: definition of objectives; determination of the target audience; choice of pedagogical and theoretical reference for content; content selection and structuring; software development and evaluation by experts (five nurses and four physicians). All responded to an instrument that included four domains: pedagogical; content; functionality; system presentation and usability. The evaluation criteria were arranged on a Likert-type scale. The percentage of agreement and Content Validity Index were used for the quantitative analysis of the degree of agreement, considering a Content Validity Index cutoff point equal to 0.80.ResultsThe overall agreement index, calculated by the arithmetic mean of the Contents Validity Index of the evaluated domains, was 0.96, with scores ranging from 0.90 to 1.00. The average percentage of agreement of the experts per domain was 92.86%, with lower agreement in the content (80.95%), presentation, and usability (90.48%) domains. 100% of percentage of agreement was observed in the pedagogical and functionality domains among the evaluated specialists.ConclusionThe percentage of agreement, Content Validity Index and overall agreement index of the Child Health Handbook educational software in the context of primary care disclosed the software adequacy as an educational resource for continuing education of primary care nurses and physicians. Considering the assessed dimensions, it can also be used by other health professionals and undergraduate students.  相似文献   
104.
BackgroundEmergency Medicine/Critical Care Medicine (EM/CCM) trainees may obtain board certification through Internal Medicine (American Board of Internal Medicine [ABIM]), Surgery (American Board of Surgery [ABS]), and Anesthesiology (American Board of Anesthesiology [ABA]). However, EM/CCM trainees experience challenges, including: 1) additional training requirements and 2) an unwillingness to accept EM graduates by many programs.ObjectivesWe sought to: 1) compare EM/CCM knowledge acquisition to medicine (Internal Medicine [IM]/CCM), surgery (surgical critical care [SCC]), and anesthesiology (anesthesiology critical care medicine [ACCM]) Fellows at the local and national level using the Multidisciplinary Critical Care Knowledge Assessment Program (MCCKAP) in-service examination as an objective measure; and 2) compare American Board of Medical Specialties (ABMS) pass rates for EM/CCM.MethodsSingle-center retrospective analysis comparing scores obtained by EM/CCM on the MCCKAP examination with SCC and ACCM over a 10-year period. Scores are presented as means with standard deviations. We performed similar analysis on ABMS examination pass rates.ResultsThere were 117 MCCKAP scores (37 EM/CCM; 80 SCC and ACCM) evaluated. EM/CCM mean score 562.4 (SD 67.4); SCC and ACCM mean score 505.3, (SD 87.5) at the institutional level (p < 0.001). Similarly, EM/CCM scored higher than the national mean (562.4, SD 67.4 vs. 500 SD 100, p < 0.001). Nationally, ABIM-CCM board certification rate was 91.2% for 137 EM/CCM, compared with 93.2% for IM/CCM (p = 0.22); 28 EM/CCM have obtained ABA-CCM board certification with rates similar to ACCM (90.4 vs. 89.3%; p = 0.85).ConclusionsEM/CCM Fellows demonstrate successful knowledge acquisition both locally and at a national level. EM/CCM achieve ABMS pass rates similar to other CCM trainees. The current arbitrary additional training requirements placed on EM/CCM should be removed.  相似文献   
105.
106.
Abstract

Background

Comorbidities are commonly seen in patients with coronavirus disease 2019 (COVID-19), but the clinical implication is not yet well-delineated. We aim to characterize the prevalence and clinical implications of comorbidities in patients with COVID-19.  相似文献   
107.
108.
109.
110.
Caring is typically constructed as a feminised practice, resulting in women shouldering the burden of care-related work. Health-seeking behaviours are also constructed as feminine and men have poorer health outcomes globally. Employing men as carers may not only improve the health of the men they assist but also be transformative with regards to gendered constructions of caring. Using semi-structured interviews and observational home visits, this study explored the techniques that community care workers employ when working with male clients. The empirical analysis draws on the perspectives of eight care workers and three of their male clients from the Cape Town area. Interviews reveal how care workers and clients perform and negotiate masculinities as they navigate hegemonic masculine norms that require men to act tough, suppress emotions and deny weakness and sickness. Both parties bump up against ideals of what it means to be a man as they strive to provide care and receive support. Community care workers avoid rupturing client performances of hegemonic masculinities which inhibit confession and support. To do this, they use techniques of indirectly broaching sensitive subjects, acting in a friendly way and being clear about the intention of their work.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号