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   3127125篇
  免费   277037篇
  国内免费   13853篇
耳鼻咽喉   43529篇
儿科学   96367篇
妇产科学   81005篇
基础医学   504700篇
口腔科学   86151篇
临床医学   279819篇
内科学   543279篇
皮肤病学   84841篇
神经病学   271795篇
特种医学   125275篇
外国民族医学   196篇
外科学   492659篇
综合类   101252篇
现状与发展   24篇
一般理论   2177篇
预防医学   265118篇
眼科学   71240篇
药学   215950篇
  22篇
中国医学   9109篇
肿瘤学   143507篇
  2021年   54496篇
  2020年   34780篇
  2019年   57653篇
  2018年   69911篇
  2017年   53240篇
  2016年   58783篇
  2015年   73208篇
  2014年   107292篇
  2013年   172283篇
  2012年   82928篇
  2011年   80818篇
  2010年   113200篇
  2009年   118836篇
  2008年   68137篇
  2007年   70336篇
  2006年   81570篇
  2005年   77237篇
  2004年   79753篇
  2003年   71003篇
  2002年   60662篇
  2001年   84008篇
  2000年   76184篇
  1999年   80023篇
  1998年   63070篇
  1997年   61529篇
  1996年   59267篇
  1995年   54814篇
  1994年   49152篇
  1993年   45978篇
  1992年   57356篇
  1991年   54604篇
  1990年   51818篇
  1989年   51413篇
  1988年   48177篇
  1987年   47093篇
  1986年   44893篇
  1985年   45492篇
  1984年   43549篇
  1983年   40221篇
  1982年   40260篇
  1981年   38096篇
  1980年   36020篇
  1979年   36880篇
  1978年   33520篇
  1977年   30834篇
  1976年   28037篇
  1975年   26566篇
  1974年   27689篇
  1973年   26616篇
  1972年   25039篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
991.
992.
993.
994.
995.
996.
997.
998.
Theory: Immersive simulation is a common mode of education for medical students. Observation of clinical simulations prior to participation is believed to be beneficial, though this is often a passive process. Active observation may be more beneficial. Hypotheses: The hypothesis tested in this study was that the active use of a simple checklist during observation of an immersive simulation would result in better participant performance in a subsequent scenario compared with passive observation alone. Methods: Medical students were randomized to either passive or active (with checklist) observation of an immersive simulation involving cardiac arrest prior to participating in their own simulation. Performance measures included time to cardiopulmonary resuscitation (CPR) and time to defibrillation and were compared between first and second scenarios as well as between passive and active observers. Results: Seventy-nine simulations involving 232 students were conducted. Mean time to CPR was 18 seconds (SD = 11.6) for those using the checklist and 24 seconds (SD = 15.8) for those who observed passively (M difference = 6 seconds), t(35) = 1.46, p =.153. Time to defibrillation was 94 seconds (SD = 26.4) for those using the checklist and 92 seconds (SD = 23.8) for those who observed passively (M difference = –2 seconds), t(38) =.21, p =.837. Time to CPR was 24 seconds (SD = 15.8) for passive observers and 31 seconds (SD = 21.0; M difference = 7 seconds), t(35) = 1.13, p =.265, for their first scenario counterparts. Time to CPR was 18 seconds (SD = 11.6) for active observers and 36 seconds (SD = 26.2; M difference = 18 seconds), t(24) = 2.81, p =.010, for their first scenario counterparts. Time to defibrillation was 92 seconds (SD = 23.8) for passive observers and 125 seconds (SD = 32.2; M difference = 33 seconds), t(33) = 3.63, p =.001, for their first scenario counterparts. Time to defibrillation was 94 seconds (SD = 26.4) for the active observers and 132 seconds (SD = 52.9; M difference = 38 seconds), t(28) =.46, p =.008, for their first scenario counterparts. Conclusions: Observation alone leads to improved performance in the management of a simulated cardiac arrest. The active use of a simple skills-based checklist during observation did not appear to improve performance over passive observation alone.  相似文献   
999.
1000.
Objective Consensus that enhanced teamwork is necessary for efficient and effective primary care delivery is growing. We sought to identify how electronic health records (EHRs) facilitate and pose challenges to primary care teams as well as how practices are overcoming these challenges.Methods Practices in this qualitative study were selected from those recognized as patient-centered medical homes via the National Committee for Quality Assurance 2011 tool, which included a section on practice teamwork. We interviewed 63 respondents, ranging from physicians to front-desk staff, from 27 primary care practices ranging in size, type, geography, and population size.Results EHRs were found to facilitate communication and task delegation in primary care teams through instant messaging, task management software, and the ability to create evidence-based templates for symptom-specific data collection from patients by medical assistants and nurses (which can offload work from physicians). Areas where respondents felt that electronic medical record EHR functionalities were weakest and posed challenges to teamwork included the lack of integrated care manager software and care plans in EHRs, poor practice registry functionality and interoperability, and inadequate ease of tracking patient data in the EHR over time.Discussion Practices developed solutions for some of the challenges they faced when attempting to use EHRs to support teamwork but wanted more permanent vendor and policy solutions for other challenges.Conclusions EHR vendors in the United States need to work alongside practicing primary care teams to create more clinically useful EHRs that support dynamic care plans, integrated care management software, more functional and interoperable practice registries, and greater ease of data tracking over time.  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