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   1357285篇
  免费   115553篇
  国内免费   6412篇
耳鼻咽喉   17623篇
儿科学   43705篇
妇产科学   37727篇
基础医学   186359篇
口腔科学   36526篇
临床医学   122055篇
内科学   282594篇
皮肤病学   32273篇
神经病学   112889篇
特种医学   55927篇
外国民族医学   274篇
外科学   211710篇
综合类   31606篇
现状与发展   2篇
一般理论   417篇
预防医学   108212篇
眼科学   28746篇
药学   96551篇
  5篇
中国医学   2271篇
肿瘤学   71778篇
  2018年   14080篇
  2017年   11129篇
  2016年   13381篇
  2015年   14809篇
  2014年   20737篇
  2013年   30914篇
  2012年   37739篇
  2011年   40597篇
  2010年   25280篇
  2009年   24414篇
  2008年   37519篇
  2007年   40289篇
  2006年   41448篇
  2005年   39982篇
  2004年   38322篇
  2003年   37357篇
  2002年   35133篇
  2001年   66471篇
  2000年   68362篇
  1999年   56880篇
  1998年   16854篇
  1997年   15081篇
  1996年   16064篇
  1995年   16265篇
  1994年   15133篇
  1993年   14183篇
  1992年   47126篇
  1991年   45772篇
  1990年   44003篇
  1989年   41837篇
  1988年   38778篇
  1987年   38101篇
  1986年   35879篇
  1985年   34658篇
  1984年   26381篇
  1983年   22135篇
  1982年   13881篇
  1981年   12487篇
  1980年   11743篇
  1979年   23565篇
  1978年   17099篇
  1977年   14409篇
  1976年   13198篇
  1975年   13740篇
  1974年   16107篇
  1973年   15403篇
  1972年   14185篇
  1971年   13045篇
  1970年   11885篇
  1969年   11104篇
排序方式: 共有10000条查询结果,搜索用时 719 毫秒
91.

Background

Arterial vascular anomalies in patients undergoing kidney transplantation (KT) are correlated with a higher incidence of early surgical complications, potentially causing graft loss. Arterial reconstruction allows patients to overcome these surgical challenges, thus minimizing the risk of poor outcomes. The aim of the present study is to retrospectively investigate the safety and effectiveness of the multiple arterial reconstruction technique with a Teflon patch in case of an unavailable aortic patch: to do so, surgical complications, graft function, and patient survival were evaluated.

Methods

During the period January 2009 to August 2016, 202 adult deceased-donor KTs were performed at our center. Group A (n = 27; reconstruction of multiple arteries) and Group B (n = 175; control group) were compared.

Results

No differences were observed between the 2 groups in terms of early postoperative course, with no vascular complication observed in Group A. No vascular patch infections were reported, nor longer cold ischemia time rates. Similarly, long-term survival rates were similar between the 2 groups.

Conclusions

The Teflon-patch arterial reconstruction technique appears to be safe and effective, with an acceptable balance of benefits and potential risks of using a prosthetic material. Studies based on larger series are needed to further validate this approach.  相似文献   
92.
Dermatophytid reactions are secondary eruptions in response to dermatophytosis. Only a few cases demonstrating an association between dermatophytid reactions and tinea capitis have been reported. Dermatophytid reactions were evaluated in patients diagnosed with kerion celsi. Patients admitted to the dermatology clinic of Van Regional Training and Research Hospital between November 22, 2012, and July 1, 2013, diagnosed with kerion celsi were evaluated for dermatophytid reactions. Six girls (32%) and 13 boys (68%) were included in this study. Dermatophytid reactions were detected in 13 of the 19 patients (68%). Seven patients (36.84%) had eczematous patches or plaques and three (15.8%) had papules. Eczematous lesions, papules, and pustules were noted in two patients (10.5%) and one (5.3%) had signs of an angioedema‐like reaction. Dermatophytid reactions in all patients were observed before the initiation of therapy. According to our clinical experiences, dermatophytid reactions in patients with kerion celsi were more common than reported. Eczematous scaly patches or plaques were the most frequently seen forms of dermatophytid in patients with kerion celsi. Dermatophytid reactions may occur before or after initiation of systemic antifungal therapy. Recognition of this reaction is important so that dermatophytids can be distinguished from drug reactions and the decision can be made whether to continue or to stop the systemic antifungal treatment.  相似文献   
93.
94.
95.
96.
Clinical Rheumatology - Prof. Ari Polachek on of the author of the published version of this article missed to add his second affiliation which is the Department of Rheumatology, Tel Aviv Sourasky...  相似文献   
97.
98.
Hypertrophic lichen planus (HLP) is a T‐cell‐mediated process typically presenting with hypertrophic or verrucous plaques on the lower limbs. We report the case of a 24‐year‐old woman with a history of HLP since age 3 years presenting with rapid malignant transformation of one lesion into a large squamous cell carcinoma (SCC). Subsequent examination revealed progressive, widespread metastatic involvement, and the patient ultimately died from her disease. SCC associated with HLP is rare, with a review of the literature revealing fewer than 50 cases. This case highlights the need to be aware of suspicious changes in HLP and to educate patients as to when to be reevaluated.  相似文献   
99.
100.
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