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   3204395篇
  免费   237498篇
  国内免费   7126篇
耳鼻咽喉   43854篇
儿科学   104396篇
妇产科学   86939篇
基础医学   469986篇
口腔科学   89505篇
临床医学   299341篇
内科学   613838篇
皮肤病学   68658篇
神经病学   258273篇
特种医学   118305篇
外国民族医学   810篇
外科学   470465篇
综合类   69729篇
现状与发展   13篇
一般理论   1224篇
预防医学   261579篇
眼科学   74143篇
药学   238275篇
  16篇
中国医学   6827篇
肿瘤学   172843篇
  2021年   25809篇
  2019年   26715篇
  2018年   37046篇
  2017年   27939篇
  2016年   30921篇
  2015年   35082篇
  2014年   49136篇
  2013年   74986篇
  2012年   102823篇
  2011年   109556篇
  2010年   64799篇
  2009年   60576篇
  2008年   101960篇
  2007年   108421篇
  2006年   109281篇
  2005年   105799篇
  2004年   101041篇
  2003年   96911篇
  2002年   93716篇
  2001年   142451篇
  2000年   146411篇
  1999年   123259篇
  1998年   36553篇
  1997年   32169篇
  1996年   32172篇
  1995年   30427篇
  1994年   28258篇
  1993年   26580篇
  1992年   96766篇
  1991年   94945篇
  1990年   92387篇
  1989年   88573篇
  1988年   81723篇
  1987年   80154篇
  1986年   75682篇
  1985年   72542篇
  1984年   54223篇
  1983年   46342篇
  1982年   27756篇
  1979年   49986篇
  1978年   35723篇
  1977年   29575篇
  1976年   28578篇
  1975年   30253篇
  1974年   36534篇
  1973年   35209篇
  1972年   32854篇
  1971年   30979篇
  1970年   28699篇
  1969年   26906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