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   12002篇
  免费   1274篇
  国内免费   65篇
耳鼻咽喉   125篇
儿科学   310篇
妇产科学   279篇
基础医学   1467篇
口腔科学   289篇
临床医学   1224篇
内科学   2731篇
皮肤病学   171篇
神经病学   781篇
特种医学   393篇
外国民族医学   1篇
外科学   2069篇
综合类   533篇
一般理论   8篇
预防医学   856篇
眼科学   270篇
药学   857篇
中国医学   64篇
肿瘤学   913篇
  2023年   84篇
  2022年   165篇
  2021年   408篇
  2020年   276篇
  2019年   362篇
  2018年   388篇
  2017年   320篇
  2016年   353篇
  2015年   394篇
  2014年   471篇
  2013年   521篇
  2012年   770篇
  2011年   747篇
  2010年   499篇
  2009年   377篇
  2008年   587篇
  2007年   630篇
  2006年   608篇
  2005年   556篇
  2004年   503篇
  2003年   448篇
  2002年   394篇
  2001年   293篇
  2000年   309篇
  1999年   281篇
  1998年   134篇
  1997年   114篇
  1996年   79篇
  1995年   93篇
  1994年   70篇
  1993年   54篇
  1992年   161篇
  1991年   171篇
  1990年   190篇
  1989年   161篇
  1988年   162篇
  1987年   136篇
  1986年   131篇
  1985年   107篇
  1984年   78篇
  1983年   71篇
  1982年   60篇
  1981年   51篇
  1980年   49篇
  1979年   56篇
  1978年   45篇
  1977年   39篇
  1976年   39篇
  1975年   40篇
  1973年   41篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
2.
3.
4.
A 23-year-old man was admitted for treatment of acute exacerbation of ileitis and perianal abscess caused by Crohn's disease. After incision and drainage of the abscess, coupled with antibiotic therapy, 6-mercaptopurine (6-MP) was commenced. His white blood cell (WBC) count on day 12 after initiation of 6-MP was not decreased. However, on day 24 he was re-admitted because of severe myelosuppression (WBC: 300/microl), which was complicated by the recurrence of the perianal abscess. Myelosuppression was prolonged and required the administration of granulocyte colony stimulating factor (G-CSF). G-CSF was continued for 17 days to achieve recovery of his WBC count to a normal level.  相似文献   
5.
The aim of this study was to assess the impact of delivery on the pelvic floor and whether cesarean section (C/S) can prevent pelvic floor injury. Five hundred thirty nine women were divided into three groups according to the delivery method adopted: elective C/S, emergent C/S, and vaginal delivery. A urinary incontinence questionnaire survey was conducted around 1 year postpartum. Emergent C/S may be a major risk factor for postpartum urinary incontinence and interfere with the benefit of elective C/S for preventing pelvic floor injury. Hence, not all C/S deliveries can reduce the likelihood of postpartum urinary incontinence. The key lies in whether the C/S is performed before labor.  相似文献   
6.
Campath-1H (alemtuzumab) induction was used for renal transplantation in combination with sirolimus as immunosuppression. We previously reported a high (28%) rate of early rejection with this regimen, and now report 3-year outcomes. Twenty-nine patients were recipients of either deceased donor or non-HLA (Human Leukocyte Antigen) identical living donor primary renal allografts. Clinical parameters including infection, malignancy, kidney function, and kidney histology were followed prospectively for 3 years. Three-year cumulative graft and patient survival were 96% and 100%, respectively. Twenty patients were maintained on steroid-free immunosuppressive regimens, and 15 patients were maintained on monotherapy for immunosuppression (12 on sirolimus). No serious infectious complications were observed and two patients developed basal cell skin cancer. The 3-year results of our initial pilot study demonstrate good graft (96%) and patient (100%) outcomes. Campath-1H induction has yielded a high proportion of patients maintained on immunosuppressive monotherapy (57%) without serious infectious- and no malignancy-related complications. The reported regimen yielded novel insights into both Campath-1H and sirolimus therapy in renal transplantation. Because of the higher incidence of early rejection, we recommend a modified strategy of immunosuppression including a brief course of a calcineurin inhibitor.  相似文献   
7.
8.
<西太平洋地区本科医学教育指导原则>为医学院校提供了基准和质量改进的努力方向,并将有助于实现可持续的课程改革.本次会议将是中国在改善本科医学教育质量上迈出的重要一步.世界卫生组织愿与中国政府合作并提供支持.  相似文献   
9.
10.
Pain control is one of the most challenging aspects in the management of chronic pancreatitis. Total pancreatectomy can successfully relieve the intractable abdominal pain in these patients but will inevitably result in insulin-dependent diabetes. Islet autotransplantation aims to preserve, as far as possible, the insulin secretory function of the islet cell mass thereby reducing (or even removing) the requirement for exogenous insulin administration after a total pancreactomy. Despite the relatively small number of centres able to perform these procedures, there are important technical variations in the details of their approaches. The aim of this review is to provide details of the current surgical practice for total pancreatectomy combined with islet autotransplantation, and outline the potential advantages and disadvantages of the variations adopted in each centre.  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