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   148695篇
  免费   32455篇
  国内免费   2391篇
耳鼻咽喉   5174篇
儿科学   5349篇
妇产科学   2392篇
基础医学   3048篇
口腔科学   1463篇
临床医学   26561篇
内科学   47048篇
皮肤病学   7496篇
神经病学   14713篇
特种医学   6322篇
外科学   40817篇
综合类   233篇
现状与发展   72篇
预防医学   7022篇
眼科学   3318篇
药学   882篇
中国医学   9篇
肿瘤学   11622篇
  2024年   685篇
  2023年   4782篇
  2022年   1177篇
  2021年   3067篇
  2020年   6011篇
  2019年   2136篇
  2018年   7374篇
  2017年   7307篇
  2016年   8386篇
  2015年   8370篇
  2014年   15442篇
  2013年   15556篇
  2012年   5361篇
  2011年   5384篇
  2010年   10298篇
  2009年   14190篇
  2008年   5695篇
  2007年   3948篇
  2006年   6424篇
  2005年   3683篇
  2004年   2950篇
  2003年   1943篇
  2002年   2025篇
  2001年   3796篇
  2000年   3022篇
  1999年   3208篇
  1998年   3632篇
  1997年   3449篇
  1996年   3353篇
  1995年   3207篇
  1994年   1937篇
  1993年   1558篇
  1992年   1380篇
  1991年   1414篇
  1990年   1059篇
  1989年   1184篇
  1988年   1031篇
  1987年   869篇
  1986年   901篇
  1985年   726篇
  1984年   557篇
  1983年   527篇
  1982年   512篇
  1981年   401篇
  1980年   359篇
  1979年   310篇
  1978年   332篇
  1977年   397篇
  1975年   280篇
  1972年   314篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
81.
82.
Gorlin syndrome (naevoid basal cell carcinoma syndrome) is a genetically linked disorder characterized by the development of multiple basal cell carcinomas (BCCs) throughout life. Cumulative surgery, cryotherapy and other conventional interventions can result in significant disfigurement by middle age. Radiotherapy is contra-indicated because the mutated gene underlying the syndrome, ‘PTCH’, increases sensitivity to ionising radiation, so there is significant likelihood of inducing further tumours in and around the irradiated area. Photodynamic therapy offers a non-invasive treatment option for patients with this condition, with the added advantage of causing minimal scarring.  相似文献   
83.
84.
85.
86.
87.
Although psychoanalysis was the first-choice treatment for premature ejaculation (PE) between 1920 and 1960, hardly any reports on its efficacy have been published. Moreover, a scientific debate about its findings has never been fully developed. The recent progress that has been made in the classification of three different PE syndromes creates a new opportunity for psychoanalytic investigations of men with complaints of PE, distinguished by the actual duration of their intravaginal ejaculation latency time (IELT). The term premature-like ejaculatory dysfunction has been introduced to distinguish men with self-perceived PE at normal and long IELT durations from those men with lifelong, acquired and normal variable PE. Psychoanalytic research may contribute to a better understanding of the consequences of objective early ejaculations on the unconscious mental life of men with the four forms of PE. By integrating neurobiological, clinical and epidemiological data of ejaculatory performance, a revival of psychoanalytic research of PE in the four distinct, classified PE groups, will probably contribute to a deeper insight in to the unconscious mental life of men affected by PE.  相似文献   
88.
89.
Fibromyalgia is a syndrome of widespread pain, nonrestorative sleep, disturbed mood, and fatigue. Optimal treatment involves a multidisciplinary approach with a team of health care providers using pharmacologic and nonpharmacologic treatment. Because of the heterogeneity of the illness, management should be individualized for the patient. Pharmacologic treatment should address issues of pain control, sleep disturbance, fatigue, and any underlying coexisting mood disorder. Nonpharmacologic treatment should include patient education, a regular exercise and stretching program, and cognitive behavioral therapy. All of these are essential to improving functional capacity and quality of life. This review provides general guidelines in initiating a successful pharmacologic treatment program for patients with fibromyalgia.  相似文献   
90.
The clinical syndrome of tuberculous (TB) meningitis leading to ischemic strokes is rarely seen today in immunocompetent adults native to North America. This entity is also notoriously difficult to diagnose because the presenting symptoms are often nonspecific. The authors describe a case of a man with TB meningitis which progressed to recurrent ischemic cerebral infarcts.  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