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   4012214篇
  免费   290981篇
  国内免费   9048篇
耳鼻咽喉   55856篇
儿科学   131680篇
妇产科学   110611篇
基础医学   573495篇
口腔科学   112108篇
临床医学   369843篇
内科学   774687篇
皮肤病学   92933篇
神经病学   325744篇
特种医学   152123篇
外国民族医学   1141篇
外科学   600683篇
综合类   83609篇
现状与发展   15篇
一般理论   1602篇
预防医学   314339篇
眼科学   93604篇
药学   296178篇
  15篇
中国医学   7856篇
肿瘤学   214121篇
  2019年   32283篇
  2018年   44634篇
  2017年   33846篇
  2016年   38904篇
  2015年   43819篇
  2014年   61214篇
  2013年   92700篇
  2012年   124911篇
  2011年   132661篇
  2010年   79783篇
  2009年   75883篇
  2008年   124187篇
  2007年   132019篇
  2006年   133927篇
  2005年   129257篇
  2004年   124388篇
  2003年   119884篇
  2002年   115928篇
  2001年   183152篇
  2000年   188010篇
  1999年   158958篇
  1998年   47211篇
  1997年   41486篇
  1996年   41643篇
  1995年   40027篇
  1994年   36760篇
  1993年   34582篇
  1992年   124662篇
  1991年   120835篇
  1990年   117522篇
  1989年   113914篇
  1988年   104829篇
  1987年   102740篇
  1986年   96732篇
  1985年   92709篇
  1984年   69307篇
  1983年   59004篇
  1982年   35181篇
  1981年   31683篇
  1979年   62902篇
  1978年   44728篇
  1977年   37775篇
  1976年   35554篇
  1975年   37972篇
  1974年   45293篇
  1973年   43159篇
  1972年   40620篇
  1971年   38156篇
  1970年   35128篇
  1969年   33812篇
排序方式: 共有10000条查询结果,搜索用时 205 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