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   2397619篇
  免费   198955篇
  国内免费   4311篇
耳鼻咽喉   34921篇
儿科学   73449篇
妇产科学   64670篇
基础医学   338172篇
口腔科学   68383篇
临床医学   216752篇
内科学   473110篇
皮肤病学   48640篇
神经病学   203092篇
特种医学   96508篇
外国民族医学   887篇
外科学   363248篇
综合类   56416篇
现状与发展   1篇
一般理论   981篇
预防医学   192674篇
眼科学   56408篇
药学   180163篇
  4篇
中国医学   4441篇
肿瘤学   127965篇
  2018年   24758篇
  2017年   19189篇
  2016年   21023篇
  2015年   23811篇
  2014年   34275篇
  2013年   51848篇
  2012年   70039篇
  2011年   73699篇
  2010年   43301篇
  2009年   41383篇
  2008年   69786篇
  2007年   74308篇
  2006年   75235篇
  2005年   73205篇
  2004年   70580篇
  2003年   68195篇
  2002年   67351篇
  2001年   113093篇
  2000年   117126篇
  1999年   98920篇
  1998年   28076篇
  1997年   25633篇
  1996年   25562篇
  1995年   24722篇
  1994年   23241篇
  1993年   21634篇
  1992年   79771篇
  1991年   76731篇
  1990年   73904篇
  1989年   71205篇
  1988年   66217篇
  1987年   65151篇
  1986年   61702篇
  1985年   58730篇
  1984年   44480篇
  1983年   37851篇
  1982年   22989篇
  1981年   20414篇
  1979年   41643篇
  1978年   29179篇
  1977年   24525篇
  1976年   23011篇
  1975年   24210篇
  1974年   29972篇
  1973年   28369篇
  1972年   26513篇
  1971年   24405篇
  1970年   23020篇
  1969年   21372篇
  1968年   19392篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
61.
62.
63.
64.
ContextIt is especially important that patients are well informed when making high-stakes, preference-sensitive decisions like those on the Physician Orders for Life-Sustaining Treatment (POLST) form. However, there is currently no way to easily evaluate whether patients understand key concepts when making these important decisions.ObjectivesTo develop a POLST knowledge survey.MethodsExpert (n = 62) ratings of key POLST facts were used to select items for a POLST knowledge survey. The survey was administered to nursing facility residents (n = 97) and surrogate decision-makers (n = 112). A subset (n = 135) were re-administered the survey after a standardized advance care planning discussion to assess the scale's responsiveness to change.ResultsThe 19-item survey demonstrated adequate reliability (α = 0.72.). Residents' scores (x = 11.4, standard deviation 3.3) were significantly lower than surrogate scores (x = 14.7, standard deviation 2.5) (P < 0.001). Scores for both groups increased significantly after administration of a standardized advance care planning discussion (P < 0.001). Although being a surrogate, age, race, education, cognitive functioning, and health literacy were significantly associated with higher POLST Knowledge Survey scores in univariate analyses, only being a surrogate (P < 0.001) and being white (P = 0.028) remained significantly associated with higher scores in multivariate analyses.ConclusionThe 19-item POLST Knowledge Survey demonstrated adequate reliability and responsiveness to change. Findings suggest the survey could be used to identify knowledge deficits and provide targeted education to ensure adequate understanding of key clinical decisions when completing POLST.  相似文献   
65.
66.
67.
68.
Quality of Life Research - The aim of the study was to assess QoL and identify and analyse its determinants in women with endometriosis. The study was performed in 2019 in health centres in Lublin...  相似文献   
69.
Caring for patients with end-stage kidney disease (ESKD) in the United States is challenging, due in part to the complex epidemiology of the disease's progression as well as the ways in which care is delivered. As CKD progresses toward ESKD, the number of comorbidities increases and care involves multiple healthcare providers from multiple subspecialties. This occurs in the context of a fragmented US healthcare delivery system that is traditionally siloed by provider specialty, organization, as well as systems of payment and administration. This article describes the role of care fragmentation in the delivery of optimal ESKD care and identifies research gaps in the evidence across the continuum of care. We then consider the impact of care fragmentation on ESKD care from the patient and health system perspectives and explore opportunities for system-level interventions aimed at improving care for patients with ESKD.  相似文献   
70.
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