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   1041篇
  免费   121篇
  国内免费   23篇
耳鼻咽喉   2篇
儿科学   42篇
妇产科学   12篇
基础医学   101篇
口腔科学   53篇
临床医学   97篇
内科学   179篇
皮肤病学   12篇
神经病学   53篇
特种医学   139篇
外科学   195篇
综合类   44篇
一般理论   1篇
预防医学   38篇
眼科学   41篇
药学   61篇
肿瘤学   115篇
  2021年   13篇
  2020年   12篇
  2019年   25篇
  2018年   21篇
  2017年   20篇
  2016年   16篇
  2015年   21篇
  2014年   25篇
  2013年   33篇
  2012年   40篇
  2011年   40篇
  2010年   21篇
  2009年   22篇
  2008年   26篇
  2007年   48篇
  2006年   49篇
  2005年   26篇
  2004年   45篇
  2003年   34篇
  2002年   19篇
  2001年   47篇
  2000年   32篇
  1999年   30篇
  1998年   42篇
  1997年   34篇
  1996年   29篇
  1995年   28篇
  1994年   25篇
  1993年   26篇
  1992年   20篇
  1991年   15篇
  1990年   23篇
  1989年   16篇
  1988年   23篇
  1987年   13篇
  1986年   26篇
  1985年   15篇
  1984年   10篇
  1983年   10篇
  1982年   11篇
  1981年   11篇
  1980年   15篇
  1978年   11篇
  1977年   8篇
  1976年   15篇
  1972年   7篇
  1971年   10篇
  1969年   7篇
  1968年   9篇
  1967年   7篇
排序方式: 共有1185条查询结果,搜索用时 77 毫秒
1.
Purpose: It was investigated whether alterations in neuronal structure and function occasioned by strabismic amblyopia also may be reflected in alterations in the expression on Y type neurons of a Cat-301 antibody sensitive antigen in the lateral geniculate nucleus (LGN) and cortex of our cat model of strabismic amblyopia. Methods/Results: The percentage of positively labelled cells was reduced in LGN laminae that received input from the deviated eye in strabismic amblyopic cats compared with normal cats. In the strabismic cortex, the density of immunopositive neurons was significantly reduced compared with normal, the effect being most pronounced in layer IV Conclusions: Despite previous physiological recordings indicating a decrease in X-cell associated acuity in strabismic amblyopia, the present findings imply that the changes in the early visual experience occasioned by strabismus also produce specific molecular changes in theY neuronal class.  相似文献   
2.
3.
4.
A case of vulvar leiomyomatosis in a young adult with a history of esophagogastrectomy as a child for esophagogastric leiomyomatosis is presented. The steroid receptor profile of the tumor is described. Therapy with a combination of gonadotropin suppression and surgery was undertaken. The literature pertaining to this rare combination is discussed.  相似文献   
5.
6.
7.
8.
9.
A comprehensive anatomic and radiographic analysis of the peribursal fat plane in 12 cadavers confirmed that the fat plane seen on radiographs represents extrasynovial fat lining the subacromial bursa and documented the anatomic relations of the bursa. A three-part retrospective clinical evaluation of rotator cuff tears, calcific tendinitis, and rheumatoid arthritis was performed. Two osteoradiologists blindly graded the appearance of the peribursal fat plane with the shoulder in external versus internal rotation in 21 patients with arthrographically intact rotator cuffs and 21 patients with disrupted rotator cuffs. The peribursal fat plane was seen better with disrupted rotator cuffs. The peribursal fat plane was seen better with the shoulder in internal rotation and was seen in 60% of control subjects but only 21% of patients with rotator cuff tears. Partial or complete obliteration of this fat plane is a sensitive (79%) but less specific (60%) indicator of rotator cuff tears. Obliteration of the peribursal fat plane by inflammatory processes in adjacent tissues, including calcific tendinitis and rheumatoid arthritis, occurred with a high frequency.  相似文献   
10.
Cardiac transplantation is viable therapeutic alternative for patients with end-stage heart disease, which offers a favourable short- and medium-term prognosis. The survival has improved from 20% of patients who survived at one year after transplantation in the 1960s to the present figures of 80%-85% of patients who are alive at one year, and 50%-70% of patients who are alive at five years, after transplantation. Therefore, it seems timely to focus attention on the psychological well-being of cardiac-transplant recipients. The medical literature is scant in regard to the psychiatric and the psychosocial impact of cardiac transplantation on recipients, and a systematic and prospective study of the psychosocial adaptation of recipients is lacking. Since 1984, we have been studying the emotional impact of cardiac transplantation on recipients and their families. This article presents the results for a group of recipients who have been assessed before transplantation, then followed-up at discharge from hospital and at four, eight and 12 months after transplantation. The study attempted to quantitate the recipients' anxiety, depression, body image and subjective quality of life by way of standardized self-assessment questionnaires. The recipients' satisfaction with relationships or their marital situation also was reported, as were their degree of rehabilitation at 12 months and their attitudes to various aspects of treatment after the transplantation. Before the transplantation, 53% of patients reported an increase in anxiety and 34% of patients recorded scores that indicated mild-to-moderate levels of depression. Thirty-seven per cent of patients showed a deterioration in the quality of their lives and 34% of patients had a negative body image. After the transplantation, significant improvements occurred in all parameters, which were maintained at follow-up.  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