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   1901篇
  免费   65篇
  国内免费   75篇
耳鼻咽喉   11篇
儿科学   61篇
妇产科学   25篇
基础医学   238篇
口腔科学   23篇
临床医学   177篇
内科学   400篇
皮肤病学   43篇
神经病学   64篇
特种医学   459篇
外科学   230篇
综合类   42篇
预防医学   80篇
眼科学   38篇
药学   66篇
中国医学   4篇
肿瘤学   80篇
  2023年   9篇
  2022年   10篇
  2021年   45篇
  2020年   17篇
  2019年   23篇
  2018年   64篇
  2017年   37篇
  2016年   49篇
  2015年   26篇
  2014年   58篇
  2013年   78篇
  2012年   79篇
  2011年   69篇
  2010年   68篇
  2009年   92篇
  2008年   78篇
  2007年   104篇
  2006年   53篇
  2005年   46篇
  2004年   27篇
  2003年   32篇
  2002年   33篇
  2001年   30篇
  2000年   43篇
  1999年   28篇
  1998年   92篇
  1997年   76篇
  1996年   65篇
  1995年   59篇
  1994年   49篇
  1993年   51篇
  1992年   28篇
  1991年   28篇
  1990年   28篇
  1989年   40篇
  1988年   45篇
  1987年   36篇
  1986年   31篇
  1985年   33篇
  1984年   23篇
  1983年   20篇
  1982年   20篇
  1981年   12篇
  1980年   14篇
  1979年   7篇
  1978年   8篇
  1977年   17篇
  1976年   13篇
  1975年   17篇
  1972年   10篇
排序方式: 共有2041条查询结果,搜索用时 0 毫秒
1.
2.
We report the case of a patient with a 13-year history of pemphigus vulgaris (PV) treated with immunosuppressive agents, prednisone and mycophenolate mofetil who had developed lesions of Kaposi's sarcoma (KS) on a sole plaque of PV that had been previously treated with intralesional injections of steroids. The lesions were surgically removed and polymerase chain reaction (PCR) demonstrated human herpesvirus-8 (HHV-8) DNA. There were neither recurrences nor later dissemination of KS following gradual decrease of the immunosuppressive therapy. We suggest that the treatment with intralesional steroids may have influenced the local reactivation of a latent infection of the virus, determining the appearance of this localized KS.  相似文献   
3.
1. The present study aimed to determine the feasibility of conducting a 5 year cardiovascular outcome trial of the treatment of 6000 elderly hypertensive patients in Australian general practices. 2. General practitioners (GPs) were invited to participate by mail and personal follow-up. Patient records were reviewed to identify subjects for a blood pressure (BP) screening programme. Blood pressure was measured on three occasions and eligible subjects were included if the average BP was 160 mmHg systolic or 90 mmHg diastolic if systolic BP was 140 mmHg. 3. Seven hundred and forty-one GPs were approached and 89 were enrolled in the study (12% of mail invites and 75% of those receiving a personal contact). In 16 practices where screening was completed, 82 000 records were reviewed to identify 4% patients eligible for screening. Twenty-two per cent of eligible subjects attended screening. Of 1938 subjects screened, 180 (9%) had BP 5=160/90 mmHg. Forty-seven percent of subjects (n = 916) were receiving antihypertensive therapy and 184 (20%) were withdrawn from therapy. One hundred and sixteen (63%) of these subjects had BP return to study entry levels within 6 weeks. Fifty-seven newly diagnosed and 81 previously treated subjects were randomized (7% of the screened population). 4. Based on the high participation rate of GPs, the response rate of patients to attend a BP screening programme and the 7% randomization to screening ratio for entry into the study, the ANBP2 pilot study has demonstrated that it is feasible to recruit subjects from Australian general practices to a cardiovascular outcome trial.  相似文献   
4.
5.
6.
7.
SUMMARY A young patient presenting with splenomegaly and hypersplenism was inadvertently found to have selective IgA deficiency. There were no symptoms of immunodeficiency and the patient responded well to splenectomy, with return of blood counts to normal without adverse effects. No other cause for the hypersplenism was found. We postulate selective IgA deficiency as a cause of splenomegaly and hypersplenism.  相似文献   
8.
9.
For the release of congenital or posttraumatic webs a variety of local skin flap techniques have been described. Confusion exists on how much lengthening may be obtained by each of these techniques, as well as on how much lateral slack is needed for the flaps to be shifted. These techniques and the results they provide are reviewed, calculated, and visualized by diagrams. It is concluded that the Z-plasty and its modifications lead to superior lengthening-to-narrowing ratios. Combined YV-plasties have their advantage in that resection of scarred skin will be obtained. Position, extent and orientation of the scar or web will generally indicate which technique is to be used in each individual case.  相似文献   
10.
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