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   1995911篇
  免费   148739篇
  国内免费   4299篇
耳鼻咽喉   29913篇
儿科学   59088篇
妇产科学   57637篇
基础医学   281628篇
口腔科学   60608篇
临床医学   171579篇
内科学   384943篇
皮肤病学   43146篇
神经病学   160854篇
特种医学   79932篇
外国民族医学   590篇
外科学   311524篇
综合类   50769篇
现状与发展   7篇
一般理论   672篇
预防医学   145923篇
眼科学   47867篇
药学   150085篇
  4篇
中国医学   4116篇
肿瘤学   108064篇
  2018年   17371篇
  2015年   17819篇
  2014年   25245篇
  2013年   38661篇
  2012年   50968篇
  2011年   53716篇
  2010年   31797篇
  2009年   30535篇
  2008年   51489篇
  2007年   56122篇
  2006年   56495篇
  2005年   55018篇
  2004年   53872篇
  2003年   52036篇
  2002年   50764篇
  2001年   88674篇
  2000年   91097篇
  1999年   77343篇
  1998年   21752篇
  1997年   19940篇
  1996年   19250篇
  1995年   18237篇
  1994年   17316篇
  1992年   62589篇
  1991年   60654篇
  1990年   59668篇
  1989年   58034篇
  1988年   54303篇
  1987年   53516篇
  1986年   51179篇
  1985年   48958篇
  1984年   37300篇
  1983年   31733篇
  1982年   19505篇
  1981年   17959篇
  1980年   16709篇
  1979年   36732篇
  1978年   26337篇
  1977年   22664篇
  1976年   20595篇
  1975年   22969篇
  1974年   27849篇
  1973年   26936篇
  1972年   25741篇
  1971年   24044篇
  1970年   22881篇
  1969年   22002篇
  1968年   20281篇
  1967年   18486篇
  1966年   17266篇
排序方式: 共有10000条查询结果,搜索用时 15 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