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   2775729篇
  免费   192918篇
  国内免费   7781篇
耳鼻咽喉   35691篇
儿科学   92489篇
妇产科学   75321篇
基础医学   383812篇
口腔科学   71701篇
临床医学   248968篇
内科学   551377篇
皮肤病学   63977篇
神经病学   231923篇
特种医学   108621篇
外国民族医学   736篇
外科学   414813篇
综合类   52828篇
现状与发展   6篇
一般理论   1006篇
预防医学   215098篇
眼科学   59857篇
药学   199489篇
  8篇
中国医学   6075篇
肿瘤学   162632篇
  2021年   21974篇
  2019年   22060篇
  2018年   49502篇
  2017年   38469篇
  2016年   44271篇
  2015年   31781篇
  2014年   43026篇
  2013年   63503篇
  2012年   89722篇
  2011年   106079篇
  2010年   69008篇
  2009年   60718篇
  2008年   98504篇
  2007年   105160篇
  2006年   88479篇
  2005年   85851篇
  2004年   83861篇
  2003年   81754篇
  2002年   77182篇
  2001年   128823篇
  2000年   131805篇
  1999年   110817篇
  1998年   31689篇
  1997年   28310篇
  1996年   28438篇
  1995年   27612篇
  1994年   25288篇
  1993年   23585篇
  1992年   85260篇
  1991年   81702篇
  1990年   78944篇
  1989年   76179篇
  1988年   69568篇
  1987年   68076篇
  1986年   63601篇
  1985年   60577篇
  1984年   45023篇
  1983年   38017篇
  1982年   22538篇
  1981年   20033篇
  1979年   38984篇
  1978年   27472篇
  1977年   23278篇
  1976年   21519篇
  1975年   22836篇
  1974年   26820篇
  1973年   25385篇
  1972年   23759篇
  1971年   21963篇
  1970年   20206篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
191.
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   
192.
193.
194.
Eccrine naevus (EN) is a rare skin hamartoma included in the organoid group of epidermal naevi, histologically defined as focal hyperplasia and/or hypertrophy of eccrine glands. Clinically, EN usually presents as hyperhidrotic patches with no visible skin changes, frequently located on the forearms. The decision to treat EN or not usually depends on the grade of hyperhidrosis, but there is no therapeutic consensus because of the rarity of this condition. We present a case diagnosed as EN in an adult patient with severe localized hyperhidrosis, which was successfully treated with botulinum toxin.  相似文献   
195.
196.
This paper takes a somewhat slant perspective on flourishing and care in the context of suffering, death and dying, arguing that care in this context consists principally of ‘acts of work and courage that enable flourishing’. Starting with the perception that individuals, society and health care professionals have become dulled to death and the process of dying in Western advanced health systems, it suggests that for flourishing to occur, both of these aspects of life need to be faced more directly. The last days of life need to be ‘undulled’. Reflections upon the experiences of the author as carer and daughter in the face of her mother’s experience of death are used as basis for making suggestions about how care systems and professionals might better assist people in dealing with ‘the most grown up thing’ humans ever do, which is to die.  相似文献   
197.
BackgroundThe aim of this paper is to assess the current state of quality and outcomes measures being reported for hepatic resections in the recent literature.MethodsMedline and PubMed databases were searched for English language articles published between 1 January 2002 and 30 April 2013. Two examiners reviewed each article and relevant citations for appropriateness of inclusion, which excluded papers of liver donor hepatic resections, repeat hepatectomies or meta-analyses. Data were extracted and summarized by two examiners for analysis.ResultsFifty-five studies were identified with suitable reporting to assess peri-operative mortality in hepatic resections. In only 35% (19/55) of the studies was the follow-up time explicitly stated, and in 47% (26/55) of studies peri-operative mortality was limited to in-hospital or 30 days. The time period in which complications were captured was not explicitly stated in 19 out of 28 studies. The remaining studies only captured complications within 30 days of the index operation (8/28). There was a paucity of quality literature addressing truly patient-centred outcomes.ConclusionQuality outcomes after a hepatic resection are inconsistently reported in the literature. Quality outcome studies for a hepatectomy should report mortality and morbidity at a minimum of 90 days after surgery.  相似文献   
198.
199.
200.
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