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   10377篇
  免费   1110篇
  国内免费   21篇
耳鼻咽喉   69篇
儿科学   220篇
妇产科学   277篇
基础医学   1905篇
口腔科学   184篇
临床医学   1296篇
内科学   2114篇
皮肤病学   94篇
神经病学   840篇
特种医学   282篇
外国民族医学   1篇
外科学   1415篇
综合类   161篇
一般理论   7篇
预防医学   1146篇
眼科学   137篇
药学   525篇
中国医学   10篇
肿瘤学   825篇
  2022年   73篇
  2021年   167篇
  2020年   102篇
  2019年   171篇
  2018年   182篇
  2017年   151篇
  2016年   181篇
  2015年   204篇
  2014年   265篇
  2013年   429篇
  2012年   574篇
  2011年   596篇
  2010年   363篇
  2009年   318篇
  2008年   551篇
  2007年   558篇
  2006年   556篇
  2005年   495篇
  2004年   515篇
  2003年   527篇
  2002年   480篇
  2001年   245篇
  2000年   235篇
  1999年   211篇
  1998年   139篇
  1997年   116篇
  1996年   107篇
  1995年   85篇
  1994年   95篇
  1993年   78篇
  1992年   173篇
  1991年   177篇
  1990年   183篇
  1989年   152篇
  1988年   169篇
  1987年   133篇
  1986年   172篇
  1985年   161篇
  1984年   107篇
  1983年   109篇
  1982年   66篇
  1981年   74篇
  1979年   89篇
  1978年   67篇
  1977年   65篇
  1976年   62篇
  1974年   71篇
  1973年   73篇
  1971年   59篇
  1970年   63篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
71.
Two patients are reported with Ekbom's syndrome of "restless legs" occurring in association with arborizing telangiectasia of the lower limbs. Sensory complaints have previously been reported in this skin condition but not described in detail. The co-existence of the two conditions is discussed in the context of previous explanations of the restless legs syndrome.  相似文献   
72.
73.
74.
75.
PurposeThe purpose of this study was for an international panel of experts to establish consensus indications for distal rectus femoris surgery in children with cerebral palsy (CP) using a modified Delphi method.MethodsThe panel used a five-level Likert scale to record agreement or disagreement with 33 statements regarding distal rectus femoris surgery. The panel responded to statements regarding general characteristics, clinical indications, computerized gait data, intraoperative techniques and outcome measures. Consensus was defined as at least 80% of responses being in the highest or lowest two of the five Likert ratings, and general agreement as 60% to 79% falling into the highest or lowest two ratings. There was no agreement if neither threshold was reached.ResultsConsensus or general agreement was reached for 17 of 33 statements (52%). There was general consensus that distal rectus femoris surgery is better for stiff knee gait than is proximal rectus femoris release. There was no consensus about whether the results of distal rectus femoris release were comparable to those following distal rectus femoris transfer. Gross Motor Function Classification System (GMFCS) level was an important factor for the panel, with the best outcomes expected in children functioning at GMFCS levels I and II. The panel also reached consensus that they do distal rectus femoris surgery less frequently than earlier in their careers, in large part reflecting the narrowing of indications for this surgery over the last decade.ConclusionThis study can help paediatric orthopaedic surgeons optimize decision-making for, and outcomes of, distal rectus femoris surgery in children with CP.Level of evidenceV  相似文献   
76.
Quality of Life Research - Adolescents and young adults (AYA) with Inflammatory Bowel Disease (IBD) report higher depressive symptoms and anxiety compared to healthy controls, with disease severity...  相似文献   
77.
The relationship of negative schizophrenia to parkinsonism   总被引:1,自引:0,他引:1  
The positive-negative distinction of schizophrenia has emerged as a valid means of clarifying its heterogeneity. Despite evidence that the two symptom classes may reflect different dimensions of the disease, there is presently no integrated model for understanding of the pathophysiology of these symptoms and their co-occurrence in schizophrenia. We propose that negative phenomena of schizophrenia may be a variant of Parkinsonism. This view is supported by the overlap with Parkinsonism in terms of clinical features, neurochemistry, pharmacology, as well as neuroradiological and neuropathological aspects. As such, negative symptoms may be a manifestation of disease of the basal ganglia and constitute the core pathology in schizophrenia. Positive symptoms, conversely, may reflect an "accessory" process related to a compensatory increase in striatal and limbic dopamine activity following an injury to the dopaminergic system. In the present communication we present a series of studies that support the association of negative schizophrenia and Parkinsonism. Based on this evidence, we suggest that schizophrenic patients with prominent negative symptoms might be managed like patients with Parkinson's disease, namely, with dopaminergic drugs and MAO-B inhibitors. Finally, the association of negative schizophrenia with Parkinsonism raises the possibility that adrenal medullary tissue transplantation, which may benefit a selected group of Parkinsonian patients, may be a future promising therapy for refractory negative schizophrenia.  相似文献   
78.
79.
Pseudologia fantastica is sparsely defined in the psychiatric literature, and has not been reviewed in the English-language psychiatric literature since 1988. To redefine the role of pseudologia fantastica in factitious disorder, the case of a 56-year-old man with factitious disorder is discussed.  相似文献   
80.
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