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   37959篇
  免费   3598篇
  国内免费   66篇
耳鼻咽喉   380篇
儿科学   1178篇
妇产科学   773篇
基础医学   5266篇
口腔科学   661篇
临床医学   4750篇
内科学   6738篇
皮肤病学   431篇
神经病学   4285篇
特种医学   1085篇
外科学   5197篇
综合类   763篇
一般理论   23篇
预防医学   4325篇
眼科学   738篇
药学   2426篇
中国医学   33篇
肿瘤学   2571篇
  2023年   198篇
  2022年   206篇
  2021年   744篇
  2020年   420篇
  2019年   737篇
  2018年   846篇
  2017年   592篇
  2016年   600篇
  2015年   724篇
  2014年   990篇
  2013年   1599篇
  2012年   2290篇
  2011年   2224篇
  2010年   1159篇
  2009年   1129篇
  2008年   1956篇
  2007年   1965篇
  2006年   1863篇
  2005年   1747篇
  2004年   1761篇
  2003年   1652篇
  2002年   1480篇
  2001年   961篇
  2000年   970篇
  1999年   818篇
  1998年   446篇
  1997年   383篇
  1996年   379篇
  1995年   340篇
  1994年   306篇
  1993年   339篇
  1992年   674篇
  1991年   662篇
  1990年   615篇
  1989年   631篇
  1988年   594篇
  1987年   603篇
  1986年   554篇
  1985年   539篇
  1984年   432篇
  1983年   382篇
  1982年   283篇
  1981年   247篇
  1980年   233篇
  1979年   380篇
  1978年   210篇
  1977年   211篇
  1976年   237篇
  1974年   257篇
  1973年   239篇
排序方式: 共有10000条查询结果,搜索用时 515 毫秒
1.
2.
While previous randomised controlled trials and meta-analyses offer only limited evidence for the effectiveness of cognitive rehabilitation, qualitative studies examining patient perspectives report more positive outcomes. This meta-synthesis of qualitative studies examined patient perspectives of cognitive rehabilitation for memory, attention, and executive function problems in people with multiple sclerosis. Using set eligibility criteria, we screened electronic databases, reference lists, and academic networks for relevant papers. Seven papers (195 participants) were selected. Two independent researchers conducted quality appraisals of papers. Data analysis, guided by the thematic synthesis approach, yielded six main themes. These suggested that patients benefitted from the group environment in rehabilitation. Cognitive rehabilitation facilitated the participants’ reflection and awareness of their cognitive deficits, and was associated with increased knowledge and understanding of their illness. Increased strategy use was reported and associated with improvements in cognitive functioning and greater confidence and perseverance. Participants reported emotional and social improvements, and felt more optimistic. Overall, these changes had a positive impact on participants’ quality of life. This synthesis of qualitative studies indicates that people with multiple sclerosis who experience cognitive deficits benefit from cognitive rehabilitation programmes. This finding must, however, be viewed in light of the limitations of this meta-synthesis. The meta-synthesis was registered in the PROSPERO database under CRD42017040148.  相似文献   
3.
4.
5.
6.
A 48-year-old smoker with a history of hyperthyroidism treated 10 years prior to presentation with radioactive iodine ablation of the thyroid gland presented to his ophthalmologist with a 2-week history of transient loss of vision in the right eye occurring for 1 to 2 hours each morning. He denied ocular pain, diplopia or change in the prominence of one or both eyes. Examination revealed 2 mm of relative proptosis on the right, bilateral temporal flare and lower lid retraction. There was minimal upper lid retraction and no evidence of lid lag. Ocular motility was full. Dilated fundoscopic examination revealed bilateral optic nerve edema, right more than left. CT of the orbit demonstrated enlargement of the extraocular muscles bilaterally with marked enlargement of the right medial rectus and left inferior rectus muscles resulting in crowding at the orbital apex bilaterally. Laboratory testing revealed the patient to be hyperthyroid. The patient was treated with high dose oral steroids followed by orbital radiation. Hyperthyroidism was managed by the patient’s primary care physician. Visual symptoms rapidly improved with oral steroids and orbital radiation. Optic nerve edema completely resolved. Repeat CT imaging demonstrated a reduction in the enlargement of the extraocular muscles with relief of bilateral optic nerve compression.  相似文献   
7.
8.
9.
10.
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