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   1231篇
  免费   188篇
  国内免费   18篇
耳鼻咽喉   20篇
儿科学   51篇
妇产科学   19篇
基础医学   81篇
口腔科学   38篇
临床医学   206篇
内科学   269篇
皮肤病学   102篇
神经病学   39篇
特种医学   132篇
外科学   187篇
综合类   94篇
现状与发展   30篇
预防医学   51篇
眼科学   15篇
药学   31篇
中国医学   3篇
肿瘤学   69篇
  2024年   14篇
  2023年   178篇
  2022年   12篇
  2021年   16篇
  2020年   55篇
  2019年   21篇
  2018年   51篇
  2017年   45篇
  2016年   39篇
  2015年   55篇
  2014年   82篇
  2013年   60篇
  2012年   25篇
  2011年   29篇
  2010年   73篇
  2009年   87篇
  2008年   28篇
  2007年   50篇
  2006年   18篇
  2005年   17篇
  2004年   10篇
  2003年   14篇
  2002年   15篇
  2001年   11篇
  2000年   13篇
  1999年   26篇
  1998年   35篇
  1997年   49篇
  1996年   40篇
  1995年   35篇
  1994年   29篇
  1993年   34篇
  1992年   7篇
  1991年   7篇
  1990年   10篇
  1989年   22篇
  1988年   20篇
  1987年   14篇
  1986年   4篇
  1985年   11篇
  1984年   4篇
  1983年   3篇
  1982年   8篇
  1981年   10篇
  1980年   12篇
  1978年   5篇
  1977年   3篇
  1976年   13篇
  1975年   10篇
  1974年   3篇
排序方式: 共有1437条查询结果,搜索用时 15 毫秒
131.
The Acne Disability Index: Usefulness confirmed   总被引:1,自引:0,他引:1  
One hundred and four patients with acne completed a questionnaire derived from the Cardiff Acne Disability Index Questionnaire. In addition, 59% of patients returned an identical follow-up questionnaire 6 months later. Significant disability from acne was identified in many patients, with the median initial Acne Disability Index (ADI) being 6 (maximum possible 15), improving to 3 after treatment. Scores correlated poorly with the clinical severity of acne. The questionnaire proved useful for identifying patients with poor self-image who might benefit from more potent treatment for their acne, and to evaluate the effect of treatment.  相似文献   
132.

Background  

Percutaneous Endoscopic Gastrostomy (PEG) performed through the Introducer Technique is associated with lower risk of surgical infection when compared to the Pull Technique. Its use is less widespread as the fixation of the stomach to the abdominal wall is a stage of the procedure that is difficult to be performed. We present a new technical variant of gastropexy which is fast and easy to be performed. The aim of this study was to evaluate the safety and feasibility of a new technical variant of gastropexy in patients submitted to gastrostomy performed through the Introducer Technique.  相似文献   
133.
BSc  PhD  CChem  MRSCM.A. Healy  MSc  PhD  MPS  MIPharm. MM. Aslam 《Public health》1986,100(3):149-151
Traditional Asian and Arab preparations can contain lead. Of particular note is the eye cosmetic known as surma, or kohl. Following detailed examination of the use of this material amongst the Asian community within Britain, the Government undertook a programme of education to inform of the dangers the use of such materials presents. In this paper we report the results of a retrospective pilot survey of the effectiveness of these campaigns among 46 Asian women in Nottingham. The results show that the use of surma is still widespread, both among the women and their children and families. The most effective means of communicating the dangers of these materials appears to be via television programmes.  相似文献   
134.

Background

A significant number of soldiers suffer serious injuries or die in the process of demining and a protective device is necessary in such operations.

Methods

All the patients involved in demining operations using the foot protection devices in last one year were analysed.

Results

We received 35 patients, of which only five had limb injuries and 30 had eye injuries. Of the five, three had closed calcaneal fractures and two contusion of foot. No fatality, amputation or compound fracture occured.

Conclusion

Early results after the use of this device during demining operations are encouraging.Key Words: Mine blast injury, Demining, Spider boot  相似文献   
135.
136.
Objectives The Accreditation Council for Graduate Medical Education requires that residency programs evaluate the acquisition of six general competencies, including Interpersonal and Communication Skills (ICS). To develop a 360-degree method for accomplishing this, a semantic-differentiation matrix for various communication traits for nurses to evaluate physician ICS was developed. The authors sought to determine whether this evaluation method could discriminate between more experienced medical communicators (faculty) and less experienced medical communicators (residents).
Methods A 98-item questionnaire measured several communication dimensions by using an eight-element semantic-differentiation scale. In addition, global assessment ratings assessed nursing perceptions of physician ICS skills. This process was repeated for various clinical scenarios.
Results There were 26 nurse evaluators, 19 emergency medicine (EM) residents (EM2 and EM3), and 30 EM faculty. Each physician received five independent evaluations (total, 245 evaluations). All EM residents (EM2 and EM3) were compared with the EM faculty. All eight items on the semantic-differentiation scale were compared. Likewise, the global assessment scores were compared. In every category, the faculty scored higher (Mann-Whitney U: p < 0.001).
Conclusions An evaluation process integrating a semantic-differentiation matrix was applied to various clinical scenarios (as well as global assessment items) and demonstrated discriminatory results. Faculty physicians scored significantly higher than resident physicians. The ability to provide discriminatory results is a requisite in the development of a valid evaluation process. The described semantic-differentiation matrix and global assessment questions may be valid measurements of ICS.  相似文献   
137.
138.
139.
140.
Stigma is a common problem among people living with HIV/AIDS (PLWHA). However, little is known about HIV/AIDS‐related stigma in older PLWHA over the age of 50. This study described the stigma of HIV/AIDS and its factors based on 120 PLWHA aged 50 or older in an area of high HIV prevalence in south rural China. Each participant completed a face‐to‐face questionnaire that collected information on demographic characteristics, AIDS‐related events and experience of HIV/AIDS‐related stigma. Finally, only 18.1% reported experiencing external stigma compared with 64.3% feeling internal stigma. Regression analysis indicated that social support and health status were the two variables that were significantly predictive of both external and internal stigma. Whatever, the more support were received from family members by PLWHA, the less external stigma was perceived. Negative marital situation was also related to external stigma. Reducing HIV/AIDS stigma requires a supportive environment, positive attitude and correct knowledge of AIDS. Health workers and policy makers should take practical approaches to reduce prejudice.  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