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   1115篇
  免费   182篇
  国内免费   19篇
耳鼻咽喉   19篇
儿科学   50篇
妇产科学   16篇
基础医学   45篇
口腔科学   18篇
临床医学   173篇
内科学   258篇
皮肤病学   72篇
神经病学   80篇
特种医学   112篇
外科学   223篇
综合类   53篇
现状与发展   20篇
预防医学   59篇
眼科学   28篇
药学   20篇
中国医学   2篇
肿瘤学   68篇
  2024年   8篇
  2023年   43篇
  2021年   22篇
  2020年   24篇
  2019年   13篇
  2018年   59篇
  2017年   52篇
  2016年   42篇
  2015年   47篇
  2014年   46篇
  2013年   65篇
  2012年   30篇
  2011年   37篇
  2010年   54篇
  2009年   73篇
  2008年   46篇
  2007年   41篇
  2006年   47篇
  2005年   34篇
  2004年   40篇
  2003年   29篇
  2002年   27篇
  2001年   32篇
  2000年   17篇
  1999年   21篇
  1998年   29篇
  1997年   33篇
  1996年   46篇
  1995年   29篇
  1994年   17篇
  1993年   21篇
  1992年   7篇
  1991年   9篇
  1990年   11篇
  1989年   12篇
  1988年   16篇
  1987年   14篇
  1986年   11篇
  1985年   12篇
  1984年   5篇
  1983年   7篇
  1982年   9篇
  1981年   5篇
  1980年   6篇
  1978年   12篇
  1977年   10篇
  1976年   7篇
  1975年   5篇
  1964年   5篇
  1963年   4篇
排序方式: 共有1316条查询结果,搜索用时 0 毫秒
81.
Complications of epidural anesthesia: MR appearance of abnormalities   总被引:5,自引:0,他引:5  
  相似文献   
82.
83.
84.
This review of recent literature explores the similarities and differences between the work of community psychiatric nurses and their mental handicap counterparts. The comparisons which have been made between groups of nurses are related to the authors own research studies. These included an observations study of one community mental handicap nursing team and a national survey of all such teams in England and Wales. The importance of trade union membership, the place of the Community Psychiatric Nursing Association and the implication of joint training courses are discussed. The emergence of a new professional role that of the 'community mental health nurse' is discussed and the implications which this might have for the future organization of community psychiatric nursing services is outlined.  相似文献   
85.
The main aim was to study the predictive power of sense of coherence regarding future needs of care among elderly patients evaluated as medically ready for discharge from somatic emergency care. A secondary aim was to study the consistency of sense of coherence over time among patients with this kind of experience. The sample consisted of 53 Swedish patients (mean age 82.8 years, SD = 6.6 years) who had completed their medical treatment at surgical or orthopaedic departments. The predominant diagnosis was lower limb fractures. Sense of coherence was assessed twice, on the day the patient was evaluated as medically ready for discharge and 1 month later. On the second assessment occasion, 28 patients had returned to their homes, 17 were staying at institutions, and eight had died. Patients who returned to their homes reported the strongest sense of coherence while still in hospital. Patients who were staying at institutions scored lowest on the overall sense of coherence scale and on the comprehensibility subscale. Patients who died before the second measurement occasion scored lowest on the meaningfulness subscale. A correlation of 0.51 was noted between the two assessments of sense of coherence, indicating a moderate temporal consistency.  相似文献   
86.
In the community, acute hypoglycaemia is commonly caused by therapies for diabetes mellitus or the excessive consumption of alcohol. Although most episodes do not require admission to hospital, little information is available on the causes and outcome of those that do. We retrospectively surveyed adult patients admitted to a large urban teaching hospital with acute hypoglycaemia in a 12-month period, identifying 56 admissions of 51 patients. Forty-one had diabetes mellitus, 33 (80%) of whom were receiving treatment with insulin. The others had hypoglycaemia induced by excessive consumption of alcohol or by deliberate self-poisoning with insulin. A history of psychiatric illness and/or chronic alcoholism was common. Neurological manifestations of hypoglycaemia were the principal reason for admission, observed on 50 occasions (89%), and 11 events (20%) had precipitated convulsions. Although many patients (59%) had received treatment for hypoglycaemia before admission, hypoglycaemia recurred in 16% of patients in hospital. Four patients (7%) died following admission, but in only one case was this the direct result of hypoglycaemia. However, within 15 months of the index hypoglycaemia event, a further six patients (11%) had died, mostly of causes unrelated to hypoglycaemia. Patients who require hospital admission for treatment of hypoglycaemia have a high incidence of neurological manifestations, a high rate of mental illness and other medical disorders, and may represent a high-risk subgroup with a poor long-term prognosis.   相似文献   
87.
88.
A 65-year-old woman presented with severe periorbital pain and swelling of the left eye, with complete ptosis, proptosis, and conjunctival chemosis. The eye was in a hypotropic position, and activity in the left superior rectus was inadequate. A firm, elastic, 2-cm mass was palpated near the superior orbital rim. Computed tomography revealed a subperiosteal abscess (SPA) at the superior portion of the orbit and a large frontoethmoidal sinus osteoma. After the SPA had been surgically drained and the osteoma completely removed, the patient recovered, with resolution of proptosis, ptosis, and motility limitations. Osteomas of the paranasal sinuses are usually asymptomatic and rarely cause SPA and orbital cellulitis. Therefore, osteoma cases must be closely followed to ensure that early diagnosis and treatment of SPA are successful in preventing severe visual loss and rescuing the patient’s vision.  相似文献   
89.
90.
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