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   45897篇
  免费   2669篇
  国内免费   2341篇
耳鼻咽喉   1568篇
儿科学   439篇
妇产科学   579篇
基础医学   6442篇
口腔科学   1046篇
临床医学   4274篇
内科学   3679篇
皮肤病学   326篇
神经病学   9542篇
特种医学   1409篇
外国民族医学   7篇
外科学   6838篇
综合类   5910篇
现状与发展   1篇
预防医学   806篇
眼科学   2904篇
药学   2431篇
  30篇
中国医学   1579篇
肿瘤学   1097篇
  2024年   385篇
  2023年   765篇
  2022年   1186篇
  2021年   1613篇
  2020年   1672篇
  2019年   1523篇
  2018年   1382篇
  2017年   1680篇
  2016年   1614篇
  2015年   1565篇
  2014年   2651篇
  2013年   2746篇
  2012年   2134篇
  2011年   2437篇
  2010年   2121篇
  2009年   1960篇
  2008年   2099篇
  2007年   2131篇
  2006年   1913篇
  2005年   1666篇
  2004年   1509篇
  2003年   1412篇
  2002年   1286篇
  2001年   1116篇
  2000年   921篇
  1999年   887篇
  1998年   846篇
  1997年   755篇
  1996年   657篇
  1995年   582篇
  1994年   517篇
  1993年   461篇
  1992年   488篇
  1991年   426篇
  1990年   404篇
  1989年   345篇
  1988年   280篇
  1987年   284篇
  1986年   278篇
  1985年   429篇
  1984年   342篇
  1983年   244篇
  1982年   262篇
  1981年   231篇
  1980年   202篇
  1979年   126篇
  1978年   100篇
  1977年   85篇
  1976年   67篇
  1975年   31篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
61.
62.
A 70-year-old woman presented with headaches and recurrent stroke symptoms. During five years, the patient has been treated for cerebral infarction associated with severe atherosclerotic stenosis of the internal carotid artery. Three-year follow-up magnetic resonance angiography showed a tiny de novo aneurysm arising from the distal part of atherosclerotic internal carotid artery. And 5-year follow-up three-dimensional CT angiogram demonstrated a definite aneurysm enlargement as large as requiring treatment. During dissection of aneurysm, the oculomotor nerve was found to be penetrated with the growing de novo aneurysm. The authors report a case of a de novo aneurysm, which resulted from atherosclerotic stenosis of the internal carotid artery at the supraclinoid portion, that was found to be penetrating the oculomotor nerve with no ocular palsy.  相似文献   
63.
64.
65.
A three-year-old boy was investigated for inexplicable incessant crying. On examination, his left wrist was mildly swollen (three to four months) and sensitive. Exploration and carpal tunnel decompression of the left wrist with incisional biopsy was performed for the presence of a fusiform swelling intimately associated with the median nerve. Histopathology revealed the presence of enlarged nerve bundles admixed with mature fat cells and diffuse fibroblastic proliferation. Three months later, he underwent urgent contralateral carpal tunnel decompression for a similar presentation. The final diagnosis was bilateral fibrolipomatous hamartoma (FLH) of the median nerves causing acute bilateral compression neuropathy.FLH of the median nerve is an extremely unusual cause of acute bilateral carpal tunnel syndrome in a young child presenting with ‘incessant crying’. A comprehensive review of FLH including epidemiology, etiology, clinical presentation, differential diagnosis, imaging, pathology, treatment and prognosis is discussed.  相似文献   
66.
67.
68.
Anatomical variations of the spinal accessory nerve are well known. We describe a previously unreported variant in which the nerve divided high in level II after crossing the internal jugular vein and before entering the sternomastoid muscle. Both branches were joined by a communication from the C2 cervical root. We discuss the clinical implications of this finding.  相似文献   
69.
Paralysis of the facial nerve is a cause of considerable functional and aesthetic disfigurement. Damage to the upper trunk can result in eye complications with the risk of exposure keratitis. Numerous factors influence the therapeutic strategy: the cause of the injury, the time elapsed since injury, functional impairment, and the likelihood of recovery. We discuss the management of an acute injury to the facial nerve and focus on the surgical options.  相似文献   
70.
Loss of sensation in the lip after insertion of an implant is annoying. The aim of this paper was to describe two techniques for management of osseointegrated dental implants that impinge on the mandibular nerve, the purpose of which is to improve sensation without unscrewing the dental implant.  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