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   159041篇
  免费   33198篇
  国内免费   2422篇
耳鼻咽喉   5308篇
儿科学   5572篇
妇产科学   2549篇
基础医学   4480篇
口腔科学   1620篇
临床医学   27684篇
内科学   49120篇
皮肤病学   7562篇
神经病学   15693篇
特种医学   6686篇
外科学   42422篇
综合类   390篇
现状与发展   72篇
一般理论   27篇
预防医学   7925篇
眼科学   3484篇
药学   1658篇
中国医学   13篇
肿瘤学   12396篇
  2024年   693篇
  2023年   4871篇
  2022年   1329篇
  2021年   3424篇
  2020年   6194篇
  2019年   2497篇
  2018年   7804篇
  2017年   7640篇
  2016年   8670篇
  2015年   8693篇
  2014年   15890篇
  2013年   16045篇
  2012年   6294篇
  2011年   6275篇
  2010年   10806篇
  2009年   14605篇
  2008年   6432篇
  2007年   4655篇
  2006年   7072篇
  2005年   4360篇
  2004年   3589篇
  2003年   2398篇
  2002年   2496篇
  2001年   3853篇
  2000年   3038篇
  1999年   3265篇
  1998年   3709篇
  1997年   3518篇
  1996年   3413篇
  1995年   3247篇
  1994年   1985篇
  1993年   1595篇
  1992年   1392篇
  1991年   1427篇
  1990年   1080篇
  1989年   1202篇
  1988年   1034篇
  1987年   870篇
  1986年   905篇
  1985年   734篇
  1984年   559篇
  1983年   534篇
  1982年   522篇
  1981年   412篇
  1980年   367篇
  1979年   306篇
  1978年   332篇
  1977年   400篇
  1975年   280篇
  1972年   305篇
排序方式: 共有10000条查询结果,搜索用时 168 毫秒
91.
Approximately 36 400 cardiac and 23 100 thoracic operations are carried out in the United Kingdom between 2006 and 2015. National Health Service (NHS) resolution, as known as the NHS litigation authority, is one of the essential bodies of the Department of Health. Its purpose is to provide NHS expertise to resolve concerns fair and square share learning for improvement. We aim to evaluate and increase awareness of medicolegal cases in cardiothoracic surgery. Total numbers and details of claims coded by NHS resolution in cardiothoracic surgery from 2004 to 2017 were requested under the Freedom of Information Act 2000. The data provided in successful claims is further breakdown into damages paid to the claimant, defence cost, claimant cost paid and the sum of the three. In contrast, unsuccessful claims only include the defence cost. Moreover, data provided also includes further analysis of primary causes and primary injuries for Claims Closed/Settled with damages paid. There were 753 claims recorded from 2004 to 2017, of which 415 (55.11%) were successful. The number of claims has been steadily increasing since 2004, with two significant raises from 2009/10 to 2010/11 (37‐55, 48.64% raise) and 2012/13 to 2013/14 (49‐69, 40.82% raise). The mean successful claim ratio was 69.58% (range, 47.56%‐ 83.33%) There is also a steady increase in the successful ratio from 2004 to 2017. In summary, this is the first study published in relation to litigation claims on cardiothoracic surgery in the United Kingdom. The results have provided insight on claims made against cardiothoracic surgery.  相似文献   
92.
93.
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   
94.
95.
96.
97.
98.
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   
99.
100.
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   
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