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   258篇
  免费   10篇
  国内免费   1篇
耳鼻咽喉   1篇
儿科学   22篇
基础医学   20篇
临床医学   29篇
内科学   80篇
皮肤病学   3篇
神经病学   49篇
特种医学   1篇
外科学   45篇
综合类   1篇
预防医学   5篇
药学   9篇
中国医学   1篇
肿瘤学   3篇
  2022年   4篇
  2021年   16篇
  2020年   3篇
  2019年   3篇
  2018年   8篇
  2017年   11篇
  2016年   3篇
  2015年   9篇
  2014年   6篇
  2013年   12篇
  2012年   29篇
  2011年   9篇
  2010年   7篇
  2009年   8篇
  2008年   12篇
  2007年   12篇
  2006年   8篇
  2005年   4篇
  2004年   13篇
  2003年   8篇
  2002年   4篇
  2001年   8篇
  2000年   9篇
  1999年   6篇
  1998年   2篇
  1997年   1篇
  1996年   2篇
  1995年   2篇
  1993年   3篇
  1992年   2篇
  1991年   5篇
  1990年   4篇
  1989年   5篇
  1988年   9篇
  1987年   3篇
  1986年   9篇
  1985年   2篇
  1984年   3篇
  1983年   1篇
  1981年   1篇
  1979年   2篇
  1976年   1篇
排序方式: 共有269条查询结果,搜索用时 15 毫秒
261.
The quantification of the social and economic handicaps caused by headache is a complex problem, especially given the great variability of headache patients' clinical pictures. In the present study, 400 patients, consecutively admitted to Headache Centers in Pavia and Milan, were interviewed on the relationship between headache and their work and social activities, in order to evaluate their socioeconomic handicap due to headache. The analysis of the data primarily focused on attack-type headaches (migraine, cluster headache, and episodic tension-type headache) and chronic or daily headaches (chronic tension-type headache and migraine combined with tension-type headache). These latter types were often characterized by the daily use or abuse of analgesics.
The overall profile which emerged from the study reveals relatively low levels of handicap or disability in work and social activities. These low levels can be mainly attributed to timely, and at times excessive, use of analgesics.  相似文献   
262.
263.
An internal hernia is defined as the herniation of viscera through an anatomic or pathologic opening within the confines of the peritoneal cavity. This herniation may be persistent or intermittent. Because of the risk of strangulation of the hernia contents, even small internal hernias are dangerous and may be lethal. Preoperative misdiagnosis has been reported to be elevated. Here, we report and discuss the clinical appearance and treatment approach of an unusual case of a spontaneous left paraduodenal hernia occurred in a child.  相似文献   
264.

Background

The potential clinical expression of tumor necrosis factor receptor-associated periodic syndrome (TRAPS), in the form of idiopathic recurrent acute pericarditis (IRAP) has not been explored in the medical literature. The aim of this study was to evaluate the incidence of TRAPS mutations in patients with recurrent pericarditis and identify possible clues to TRAPS diagnosis.

Methods

Therefore, 131 consecutive Caucasian IRAP patients were investigated for mutations of the TRAPS gene and prospectively evaluated.

Results

Out of 131 patients, 8 (6.1%) carried a mutation in the TNFRSF1A gene. Compared with those without genetic mutations, patients with TRAPS mutations had more frequently a positive family history for pericarditis and periodic fever syndromes (p?p?p?p?Conclusion TRAPS is a cause of recurrent pericarditis in 6% of unselected cases with recurrent pericarditis. A positive family history for pericarditis or periodic fever syndromes, a poor response to colchicine, recurrences after the first year from the index attack or on colchicine treatment, as well as the need of immunosuppressive agents are clues of the possible presence of TNFRSF1A gene mutations in patients with recurrent pericarditis.  相似文献   
265.
Clinical Rheumatology - The aim of the present study was to compare long-term adalimumab (ADA) and infliximab (IFX) retention rates in patients with intermediate, posterior, or panuveitis....  相似文献   
266.
267.
268.
Ultrasound imaging of the lung (LUS) and associated tissues has demonstrated clinical utility in coronavirus disease 2019 (COVID-19) patients. The aim of the present study was to evaluate the possibilities of a portable pocket-sized ultrasound scanner in the evaluation of lung involvement in patients with COVID-19 pneumonia. We conducted 437 paired readings in 34 LUS evaluations of hospitalized individuals with COVID-19. The LUS scans were performed on the same day with a standard high-end ultrasound scanner (Venue GO, GE Healthcare, Chicago, IL, USA) and a pocket-sized ultrasound scanner (Butterfly iQ, Butterfly Network Inc., Guilford, CT, USA). Fourteen scans were performed on individuals with severe cases, 11 on individuals with moderate cases and nine on individuals with mild cases. No difference was observed between groups in days since onset of symptoms (23.29 ± 10.07, 22.91 ± 8.91 and 28.56 ± 11.13 d, respectively; p = 0.38). No significant differences were found between LUS scores obtained with the high-end and the portable pocket-sized ultrasound scanner. LUS scores in individuals with mild respiratory impairment were significantly lower than in those with moderate and severe cases. Our study confirms the possibilities of portable pocket-sized ultrasound imaging of the lung in COVID-19 patients. Portable pocket-sized ultrasound scanners are cheap, easy to handle and equivalent to standard scanners for non-invasive assessment of severity and dynamic observation of lung lesions in COVID-19 patients.  相似文献   
269.
Several studies report the presence of white matter lesions on brain magnetic resonance imaging in patients with migraine. The aim of our study was to detect the entity of white matter T2-hyperintensities in 90 high selected patients affected by migraine with aura, compared to a group of 90 healthy controls. We found no significant difference of incidence of white matter alterations comparing these two groups.  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