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   3266404篇
  免费   237720篇
  国内免费   7126篇
耳鼻咽喉   44315篇
儿科学   106777篇
妇产科学   87966篇
基础医学   476374篇
口腔科学   89928篇
临床医学   303324篇
内科学   627127篇
皮肤病学   68928篇
神经病学   264242篇
特种医学   121309篇
外国民族医学   810篇
外科学   481507篇
综合类   70337篇
现状与发展   13篇
一般理论   1224篇
预防医学   266991篇
眼科学   74821篇
药学   241240篇
  16篇
中国医学   6828篇
肿瘤学   177173篇
  2021年   25802篇
  2019年   26712篇
  2018年   43972篇
  2017年   33545篇
  2016年   37808篇
  2015年   35325篇
  2014年   49318篇
  2013年   75130篇
  2012年   104860篇
  2011年   115881篇
  2010年   69907篇
  2009年   64370篇
  2008年   108376篇
  2007年   116495篇
  2006年   109412篇
  2005年   107074篇
  2004年   102771篇
  2003年   99512篇
  2002年   95541篇
  2001年   142649篇
  2000年   146788篇
  1999年   123396篇
  1998年   36693篇
  1997年   32364篇
  1996年   32268篇
  1995年   30557篇
  1994年   28385篇
  1993年   26686篇
  1992年   96857篇
  1991年   95047篇
  1990年   92476篇
  1989年   88639篇
  1988年   81795篇
  1987年   80239篇
  1986年   75755篇
  1985年   72619篇
  1984年   54272篇
  1983年   46396篇
  1982年   27818篇
  1979年   50067篇
  1978年   35767篇
  1977年   29588篇
  1976年   28631篇
  1975年   30254篇
  1974年   36553篇
  1973年   35212篇
  1972年   32854篇
  1971年   30979篇
  1970年   28722篇
  1969年   26932篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
81.
82.
83.
84.

Introduction

Several studies demonstrated that simulator-acquired skill transfer to the operating room is incomplete. Our objective was to identify trainee characteristics that predict the transfer of simulator-acquired skill to the operating room.

Methods

Trainees completed baseline assessments including intracorporeal suturing (IS) performance, attentional selectivity, self-reported use of mental skills, and self-reported prior clinical and simulated laparoscopic experience and confidence. Residents then followed proficiency-based laparoscopic skills training, and their skill transfer was assessed on a live-anesthetized porcine model. Predictive characteristics for transfer test performance were assessed using multiple linear regression.

Results

Thirty-eight residents completed the study. Automaticity, attentional selectivity, resident perceived ability with laparoscopy and simulators, and post-training IS performance were predictive of IS performance during the transfer test.

Conclusions

Promoting automaticity, self-efficacy, and attention selectivity may help improve the transfer of simulator-acquired skill. Mental skills training and training to automaticity may therefore be valuable interventions to achieve this goal.  相似文献   
85.
86.
87.
While previous randomised controlled trials and meta-analyses offer only limited evidence for the effectiveness of cognitive rehabilitation, qualitative studies examining patient perspectives report more positive outcomes. This meta-synthesis of qualitative studies examined patient perspectives of cognitive rehabilitation for memory, attention, and executive function problems in people with multiple sclerosis. Using set eligibility criteria, we screened electronic databases, reference lists, and academic networks for relevant papers. Seven papers (195 participants) were selected. Two independent researchers conducted quality appraisals of papers. Data analysis, guided by the thematic synthesis approach, yielded six main themes. These suggested that patients benefitted from the group environment in rehabilitation. Cognitive rehabilitation facilitated the participants’ reflection and awareness of their cognitive deficits, and was associated with increased knowledge and understanding of their illness. Increased strategy use was reported and associated with improvements in cognitive functioning and greater confidence and perseverance. Participants reported emotional and social improvements, and felt more optimistic. Overall, these changes had a positive impact on participants’ quality of life. This synthesis of qualitative studies indicates that people with multiple sclerosis who experience cognitive deficits benefit from cognitive rehabilitation programmes. This finding must, however, be viewed in light of the limitations of this meta-synthesis. The meta-synthesis was registered in the PROSPERO database under CRD42017040148.  相似文献   
88.
89.
90.
We report two British cases of liver abscess, due to Klebsiella pneumoniae and associated with synchronous infection elsewhere, which required liver resection for definitive treatment. They illustrate the geographic spread of aggressive K pneumoniae liver infection and demonstrate the importance of early aggressive treatment.  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