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   4010701篇
  免费   291107篇
  国内免费   9036篇
耳鼻咽喉   55880篇
儿科学   131731篇
妇产科学   110629篇
基础医学   573474篇
口腔科学   112002篇
临床医学   369696篇
内科学   774078篇
皮肤病学   93012篇
神经病学   325724篇
特种医学   152157篇
外国民族医学   1141篇
外科学   600534篇
综合类   83573篇
现状与发展   15篇
一般理论   1605篇
预防医学   314037篇
眼科学   93563篇
药学   296083篇
  14篇
中国医学   7857篇
肿瘤学   214039篇
  2019年   32295篇
  2018年   44646篇
  2017年   33850篇
  2016年   38927篇
  2015年   43846篇
  2014年   61218篇
  2013年   92743篇
  2012年   124985篇
  2011年   132689篇
  2010年   79810篇
  2009年   75920篇
  2008年   124230篇
  2007年   132079篇
  2006年   134021篇
  2005年   129339篇
  2004年   124433篇
  2003年   119935篇
  2002年   115972篇
  2001年   183186篇
  2000年   188026篇
  1999年   158978篇
  1998年   47228篇
  1997年   41497篇
  1996年   41652篇
  1995年   40033篇
  1994年   36765篇
  1993年   34586篇
  1992年   124683篇
  1991年   120855篇
  1990年   117537篇
  1989年   113935篇
  1988年   104852篇
  1987年   102757篇
  1986年   96750篇
  1985年   92740篇
  1984年   69322篇
  1983年   59039篇
  1982年   35197篇
  1981年   31694篇
  1979年   62931篇
  1978年   44746篇
  1977年   37786篇
  1976年   35558篇
  1975年   37986篇
  1974年   45252篇
  1973年   43106篇
  1972年   40600篇
  1971年   38116篇
  1970年   35086篇
  1969年   33755篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
91.
92.
93.
94.

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   
95.
96.
97.
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   
98.
99.
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   
100.
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