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   4749篇
  免费   263篇
  国内免费   8篇
耳鼻咽喉   33篇
儿科学   117篇
妇产科学   54篇
基础医学   946篇
口腔科学   87篇
临床医学   338篇
内科学   904篇
皮肤病学   86篇
神经病学   459篇
特种医学   251篇
外科学   641篇
综合类   24篇
一般理论   1篇
预防医学   259篇
眼科学   121篇
药学   423篇
中国医学   5篇
肿瘤学   271篇
  2022年   24篇
  2021年   71篇
  2020年   35篇
  2019年   54篇
  2018年   76篇
  2017年   61篇
  2016年   67篇
  2015年   95篇
  2014年   116篇
  2013年   138篇
  2012年   261篇
  2011年   247篇
  2010年   154篇
  2009年   139篇
  2008年   217篇
  2007年   253篇
  2006年   241篇
  2005年   264篇
  2004年   267篇
  2003年   270篇
  2002年   253篇
  2001年   102篇
  2000年   78篇
  1999年   82篇
  1998年   83篇
  1997年   58篇
  1996年   50篇
  1995年   50篇
  1994年   42篇
  1993年   46篇
  1992年   63篇
  1991年   50篇
  1990年   57篇
  1989年   58篇
  1988年   44篇
  1987年   36篇
  1986年   56篇
  1985年   45篇
  1984年   44篇
  1983年   28篇
  1982年   37篇
  1981年   31篇
  1980年   41篇
  1979年   45篇
  1978年   22篇
  1977年   31篇
  1976年   35篇
  1975年   24篇
  1973年   32篇
  1969年   22篇
排序方式: 共有5020条查询结果,搜索用时 15 毫秒
51.
52.
53.
54.
Journal of Molecular Medicine -  相似文献   
55.
Journal of Molecular Medicine -  相似文献   
56.
57.
58.
In acute myeloid leukemia, there is an ongoing debate on the prognostic value of the early bone marrow assessment in patients receiving intensive therapy. In this retrospective study, we analyzed the prognostic impact of the early response in 1,008 patients with newly diagnosed acute myeloid leukemia, who were treated at our institution with intensive chemotherapy followed by consolidation chemotherapy and/or allogeneic hematopoietic stem cell transplantation (HSCT). We found that early blast persistence has an independent negative prognostic impact on overall survival, event-free survival and relapse-free survival. This negative prognostic impact may only be overcome in patients showing at least a partial remission at the early bone marrow assessment and who subsequently achieve blast clearance by additional induction chemotherapy prior to consolidation therapy with allogeneic HSCT. In accordance, we propose that the time slope of remission is an additional leukemia-related dynamic parameter that reflects chemosensitivity and thus may inform post-induction therapy decision-making. In addition to patient-related factors, European LeukemiaNet risk group, measurable residual disease monitoring and donor availability, this may particularly apply to European LeukemiaNet intermediate-risk patients, for whom a decision between consolidation chemotherapy and allogeneic HSCT remains challenging in many cases.  相似文献   
59.
A 66-year-old man presented with bilateral subclavian steal syndrome (SSS) due to proximal subclavian artery occlusions. He was treated by percutaneous transluminal balloon angioplasty (PTA) and stent implantation in the left subclavian artery and by PTA alone in the right subclavian artery. We could demonstrate that interventional treatment of symptomatic bilateral SSS is possible. If PTA alone is insufficient, stent implantation should be considered.  相似文献   
60.
The use of polyclonal antibodies for delayed graft function (DGF) was tested in 83 renal allograft recipients. Conventional immunosuppression (CI) was given to 52 patients with immediate graft function (IGF) while 31 patients with DGF received the polyclonal antibody ATG. Administration of OKT3 was restricted to steroid-resistant acute rejections in both groups. The incidence and severity of acute rejections, graft survival rate, CMV infections, and lymphocyte subsets were examined. ATG patients experienced a total of 0.6 acute rejections per patient, whereas CI patients had 0.9 on the average (P < 0.05). Second and third acute rejections occurred less frequently and later in the ATG group than in the CI group (P < 0.01). Steroid-resistant acute rejections occurred in 20 of the CI patients (38 %) but in only 7 of ATG patients (23 %). One-year graft survival in the CI and ATG groups was 98.1 % and 93.2 %, respectively. A decreased CD4 + to CD8 + T-lymphocyte ratio of about 0.5 was still detectable 5 years after the initial ATG administration. Hence, patients with DGF appear to benefit from induction therapy with ATG. Received: 3 March 1998 Received after revision: 20 July 1998 Accepted: 23 September 1998  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