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   5137篇
  免费   332篇
  国内免费   105篇
耳鼻咽喉   70篇
儿科学   203篇
妇产科学   55篇
基础医学   728篇
口腔科学   232篇
临床医学   484篇
内科学   969篇
皮肤病学   165篇
神经病学   189篇
特种医学   582篇
外科学   584篇
综合类   54篇
预防医学   212篇
眼科学   117篇
药学   473篇
  2篇
中国医学   67篇
肿瘤学   388篇
  2023年   33篇
  2022年   64篇
  2021年   148篇
  2020年   85篇
  2019年   93篇
  2018年   147篇
  2017年   111篇
  2016年   151篇
  2015年   227篇
  2014年   267篇
  2013年   311篇
  2012年   379篇
  2011年   334篇
  2010年   254篇
  2009年   208篇
  2008年   228篇
  2007年   223篇
  2006年   192篇
  2005年   177篇
  2004年   130篇
  2003年   89篇
  2002年   93篇
  2001年   102篇
  2000年   77篇
  1999年   64篇
  1998年   146篇
  1997年   168篇
  1996年   139篇
  1995年   116篇
  1994年   123篇
  1993年   104篇
  1992年   40篇
  1991年   43篇
  1990年   39篇
  1989年   57篇
  1988年   51篇
  1987年   45篇
  1986年   52篇
  1985年   49篇
  1984年   26篇
  1983年   21篇
  1982年   27篇
  1981年   31篇
  1980年   27篇
  1979年   7篇
  1978年   8篇
  1977年   18篇
  1976年   26篇
  1975年   15篇
  1973年   4篇
排序方式: 共有5574条查询结果,搜索用时 31 毫秒
11.
12.
13.
14.
15.
We report the case of a 3-year-old girl with temporomandibular ankylosis, which was treated with a costochondral graft and required two further resections because the grafted tissue had overgrown.  相似文献   
16.
FM sonography - a signal-processing technique that uses frequency and phase information as well as amplitude data - shows promise in evaluation of patients with diffuse liver disease. In a prospective blinded review of 37 patients with biopsy-proved liver disease and 42 healthy volunteers, FM sonography was clearly superior to traditional amplitude-based (AM) sonography in distinguishing healthy from diseased subjects. Statistically significant differences were seen in accuracy (FM, 98.7%; AM, 84.8%), sensitivity (FM, 97.3%; AM, 70.3%), and negative predictive value (FM, 97.7%; AM, 78.8%). Our data also suggest that current FM sonographic techniques cannot differentiate among histologic findings associated with different hepatic parenchymal abnormalities. It is unclear, therefore, whether FM imaging can reduce the numbers of patients who require biopsy for diagnosis or the frequency of biopsy procedures in patients with known disease.  相似文献   
17.
Thirty-five patients hospitalized for recent angiographically documented arterial occlusion in the legs (27 femoropopliteal arteries and eight grafts) benefited from local fibrinolytic therapy delivered at the site of the occlusion with a 4- or 5-F catheter. This therapy combined a continuous urokinase (UK) infusion of 1,000 U/kg/hour and a lysyl plasminogen (LYS-PLG) infusion of 15 microkatals every 30 minutes. Angiographically confirmed lysis was obtained in 85% of the cases. Only 3% of the patients had major and 6% had minor groin hematomas. Only two patients had concentrations of fibrinogen as low as 100 mg/dl. Intravascular infusion of UK-LYS-PLG is as effective as streptokinase. Its excellent tolerance makes it a good alternative in the treatment of acute ischemia in the lower limbs.  相似文献   
18.
19.
20.
BACKGROUND: The mainstay of treatment for pemphigus is systemic corticosteroids. Different adjuvants have been used to reduce side-effects of long-term corticotherapy. Gold is an anti-inflammatory drug used in autoimmune diseases, whose use has waned with the advent of new immunosuppressive agents. OBJECTIVE: To study the outcome of the use of intramuscular gold treatment of pemphigus vulgaris refractory to previous therapies. METHODS: Thirteen patients with pemphigus vulgaris who had failed to respond to several prior therapies were treated with aurothiomalate, as a steroid-sparing agent. Patients were monitored to assess disease activity and gold toxicity. RESULTS: Seven patients achieved complete remission. Four patients were able to taper prednisone doses, although pemphigus flared when prednisone was discontinued or reduced. Toxicity was observed in the other two patients. CONCLUSIONS: In 53.4% of the patients, the use of chrysotherapy resulted in the complete clearing of the disease, discontinuation of all systemic therapies and induced a long-term clinical remission. Prednisone doses were able to be reduced in the remaining 46.6%. Any side-effects were reversible with drug discontinuation. Gold therapy showed efficacy as a secondary line treatment in refractory pemphigus vulgaris.  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