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   3204060篇
  免费   237488篇
  国内免费   7126篇
耳鼻咽喉   43839篇
儿科学   104395篇
妇产科学   86938篇
基础医学   469931篇
口腔科学   89502篇
临床医学   299318篇
内科学   613809篇
皮肤病学   68628篇
神经病学   258192篇
特种医学   118298篇
外国民族医学   810篇
外科学   470411篇
综合类   69729篇
现状与发展   13篇
一般理论   1224篇
预防医学   261555篇
眼科学   74142篇
药学   238255篇
  16篇
中国医学   6826篇
肿瘤学   172843篇
  2021年   25802篇
  2019年   26710篇
  2018年   37039篇
  2017年   27935篇
  2016年   30916篇
  2015年   35076篇
  2014年   49127篇
  2013年   74967篇
  2012年   102803篇
  2011年   109546篇
  2010年   64790篇
  2009年   60568篇
  2008年   101939篇
  2007年   108409篇
  2006年   109259篇
  2005年   105785篇
  2004年   101017篇
  2003年   96903篇
  2002年   93708篇
  2001年   142442篇
  2000年   146402篇
  1999年   123256篇
  1998年   36551篇
  1997年   32164篇
  1996年   32169篇
  1995年   30427篇
  1994年   28252篇
  1993年   26575篇
  1992年   96764篇
  1991年   94938篇
  1990年   92381篇
  1989年   88559篇
  1988年   81718篇
  1987年   80151篇
  1986年   75681篇
  1985年   72541篇
  1984年   54223篇
  1983年   46342篇
  1982年   27756篇
  1979年   49984篇
  1978年   35720篇
  1977年   29573篇
  1976年   28578篇
  1975年   30253篇
  1974年   36534篇
  1973年   35208篇
  1972年   32856篇
  1971年   30979篇
  1970年   28700篇
  1969年   26906篇
排序方式: 共有10000条查询结果,搜索用时 31 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