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   2528093篇
  免费   210204篇
  国内免费   4962篇
耳鼻咽喉   35979篇
儿科学   76914篇
妇产科学   66391篇
基础医学   354998篇
口腔科学   71216篇
临床医学   231056篇
内科学   500336篇
皮肤病学   50078篇
神经病学   216213篇
特种医学   101000篇
外国民族医学   899篇
外科学   384800篇
综合类   59041篇
现状与发展   3篇
一般理论   1234篇
预防医学   206174篇
眼科学   58832篇
药学   188388篇
  5篇
中国医学   4636篇
肿瘤学   135066篇
  2018年   27140篇
  2017年   21145篇
  2016年   23097篇
  2015年   26267篇
  2014年   37900篇
  2013年   57583篇
  2012年   78304篇
  2011年   82681篇
  2010年   48441篇
  2009年   46322篇
  2008年   78906篇
  2007年   83839篇
  2006年   84321篇
  2005年   82802篇
  2004年   79665篇
  2003年   76820篇
  2002年   75633篇
  2001年   113975篇
  2000年   117712篇
  1999年   99920篇
  1998年   29978篇
  1997年   27369篇
  1996年   27155篇
  1995年   26147篇
  1994年   24531篇
  1993年   22840篇
  1992年   80364篇
  1991年   77299篇
  1990年   74428篇
  1989年   71609篇
  1988年   66690篇
  1987年   65634篇
  1986年   62138篇
  1985年   59285篇
  1984年   45407篇
  1983年   38834篇
  1982年   24306篇
  1981年   21613篇
  1980年   20257篇
  1979年   41978篇
  1978年   29768篇
  1977年   25113篇
  1976年   23501篇
  1975年   24550篇
  1974年   30192篇
  1973年   28531篇
  1972年   26605篇
  1971年   24459篇
  1970年   23039篇
  1969年   21308篇
排序方式: 共有10000条查询结果,搜索用时 843 毫秒
71.
72.
73.
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   
74.
75.
76.
77.
Abstract

Objective

Ras wild-type metastatic colorectal cancers (mCRC) may be treated with anti-vascular endothelial growth factor (VEGF) or anti-epidermal growth factor receptor (EGFR) agents. We aim to estimate patients’ preferences for mCRC treatment and relative importance of cost, efficacy improvement, avoidance of side effects and therapy convenience, and relative uptake between profiles that resemble Bevacizumab (anti-VEGF) and Cetuximab (anti-EGFR), two commonly prescribed mCRC targeted therapies.  相似文献   
78.
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   
79.
80.
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