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   3912396篇
  免费   298420篇
  国内免费   6684篇
耳鼻咽喉   56420篇
儿科学   124392篇
妇产科学   105497篇
基础医学   563814篇
口腔科学   112266篇
临床医学   359643篇
内科学   746030篇
皮肤病学   83368篇
神经病学   318897篇
特种医学   151191篇
外国民族医学   1277篇
外科学   589486篇
综合类   89308篇
现状与发展   13篇
一般理论   1601篇
预防医学   315756篇
眼科学   93564篇
药学   293745篇
  12篇
中国医学   7544篇
肿瘤学   203676篇
  2018年   42161篇
  2017年   31985篇
  2016年   35680篇
  2015年   40309篇
  2014年   57654篇
  2013年   87700篇
  2012年   119259篇
  2011年   126793篇
  2010年   75417篇
  2009年   71382篇
  2008年   119371篇
  2007年   127179篇
  2006年   128394篇
  2005年   124803篇
  2004年   120046篇
  2003年   115512篇
  2002年   113133篇
  2001年   175009篇
  2000年   180523篇
  1999年   152755篇
  1998年   45575篇
  1997年   40421篇
  1996年   40004篇
  1995年   38314篇
  1994年   35504篇
  1993年   33321篇
  1992年   121344篇
  1991年   118553篇
  1990年   115180篇
  1989年   110953篇
  1988年   102796篇
  1987年   100975篇
  1986年   95334篇
  1985年   91619篇
  1984年   69096篇
  1983年   58890篇
  1982年   35612篇
  1981年   31842篇
  1979年   64802篇
  1978年   45933篇
  1977年   38474篇
  1976年   36719篇
  1975年   38958篇
  1974年   47547篇
  1973年   45291篇
  1972年   42828篇
  1971年   40081篇
  1970年   37296篇
  1969年   35097篇
  1968年   32243篇
排序方式: 共有10000条查询结果,搜索用时 125 毫秒
101.

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   
102.
103.
104.
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   
105.
106.
107.
108.
109.
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   
110.
Henna, derived from a combination of natural leaves and coloring additives, is a common decorative dye traditionally used in many Islamic religious celebrations. Para‐phenylenediamine (PPD), a major component of black henna tattoo, is a strong sensitizer and common allergen. We report a case of severe connubial allergic contact dermatitis after black henna heterotransfer in a girl.  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