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   2012183篇
  免费   149749篇
  国内免费   4446篇
耳鼻咽喉   30197篇
儿科学   59369篇
妇产科学   57940篇
基础医学   283836篇
口腔科学   61043篇
临床医学   173090篇
内科学   388312篇
皮肤病学   43462篇
神经病学   161902篇
特种医学   80831篇
外国民族医学   590篇
外科学   313551篇
综合类   51254篇
现状与发展   8篇
一般理论   686篇
预防医学   146774篇
眼科学   48399篇
药学   151453篇
  4篇
中国医学   4266篇
肿瘤学   109411篇
  2018年   17953篇
  2015年   18527篇
  2014年   26084篇
  2013年   39558篇
  2012年   52406篇
  2011年   55118篇
  2010年   32569篇
  2009年   31241篇
  2008年   52456篇
  2007年   57039篇
  2006年   57354篇
  2005年   55864篇
  2004年   54509篇
  2003年   52566篇
  2002年   51191篇
  2001年   88891篇
  2000年   91311篇
  1999年   77517篇
  1998年   21841篇
  1997年   20010篇
  1996年   19302篇
  1995年   18292篇
  1994年   17374篇
  1992年   62670篇
  1991年   60732篇
  1990年   59742篇
  1989年   58107篇
  1988年   54365篇
  1987年   53590篇
  1986年   51227篇
  1985年   49000篇
  1984年   37333篇
  1983年   31771篇
  1982年   19528篇
  1981年   17971篇
  1980年   16724篇
  1979年   36765篇
  1978年   26358篇
  1977年   22682篇
  1976年   20612篇
  1975年   22983篇
  1974年   27870篇
  1973年   26955篇
  1972年   25760篇
  1971年   24062篇
  1970年   22899篇
  1969年   22023篇
  1968年   20292篇
  1967年   18501篇
  1966年   17278篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
1.
2.
3.
4.
5.
6.

Introduction

Physician communication impacts patient outcomes. However, communication skills, especially around difficult conversations, remain suboptimal, and there is no clear way to determine the validity of entrustment decisions. The aims of this study were to 1) describe the development of a simulation-based mastery learning (SBML) curriculum for breaking bad news (BBN) conversation skills and 2) set a defensible minimum passing standard (MPS) to ensure uniform skill acquisition among learners.

Innovation

An SBML BBN curriculum was developed for fourth-year medical students. An assessment tool was created to evaluate the acquisition of skills involved in a BBN conversation. Pilot testing was completed to confirm improvement in skill acquisition and set the MPS.

Outcomes

A BBN assessment tool containing a 15-item checklist and six scaled items was developed. Students' checklist performance improved significantly at post-test compared to baseline (mean 65.33%, SD = 12.09% vs mean 88.67%, SD = 9.45%, P < 0.001). Students were also significantly more likely to have at least a score of 4 (on a five-point scale) for the six scaled questions at post-test. The MPS was set at 80%, requiring a score of 12 items on the checklist and at least 4 of 5 for each scaled item. Using the MPS, 30% of students would require additional training after post-testing.

Comments

We developed a SBML curriculum with a comprehensive assessment of BBN skills and a defensible competency standard. Future efforts will expand the mastery model to larger cohorts and assess the impact of rigorous education on patient care outcomes.  相似文献   
7.
Objective: To assess the quality of images and video clips of fetal central nervous (CNS) structures obtained by ultrasound and transmitted via tele-ultrasound from Brazil to Australia.

Methods: In this cross-sectional study, 15 normal singleton pregnant women between 20 and 26 weeks were selected. Fetal CNS structures were obtained by images and video clips. The exams were transmitted in real-time using a broadband internet and an inexpensive video streaming device. Four blinded examiners evaluated the quality of the exams using the Likert scale. We calculated the mean, standard deviation, mean difference, and p values were obtained from paired t tests.

Results: The quality of the original video clips was slightly better than that observed by the transmitted video clips; mean difference considering all observers = 0.23 points. In 47/60 comparisons (78.3%; 95% CI?=?66.4–86.9%) the quality of the video clips were judged to be the same. In 182/240 still images (75.8%; 95% CI?=?70.0–80.8%) the scores of transmitted image were considered the same as the original.

Conclusion: We demonstrated that long distance tele-ultrasound transmission of fetal CNS structures using an inexpensive video streaming device provided images of subjective good quality.  相似文献   
8.
9.
10.
Objective: A multidisciplinary vocational rehabilitation programme, the Vocational Enablement Protocol (VEP) was developed to address the specific needs of employees with hearing difficulties. In the current study we evaluated the process of implementing the VEP in audiologic care among employees with hearing impairment. Design: In conjunction with a randomized controlled trial, we collected and analysed data on seven process parameters: recruitment, reach, fidelity, dose delivered, dose received and implemented, satisfaction, and perceived benefit. Study sample: Sixty-six employees with hearing impairment participated in the VEP. The multidisciplinary team providing the VEP comprised six professionals. Results: The professionals performed the VEP according to the protocol. Of the recommendations delivered by the professionals, 31% were perceived as implemented by the employees. Compliance rate was highest for hearing-aid uptake (51%). Both employees and professionals were highly satisfied with the VEP. Participants rated good perceived benefit from it. Conclusions: Our results indicate that the VEP could be a useful treatment for employees with hearing difficulties from a process evaluation perspective. Implementation research in the audiological setting should be encouraged in order to further provide insight into parameters facilitating or hindering successful implementation of an intervention and to improve its quality and efficacy.  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