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   220篇
  免费   24篇
  国内免费   1篇
耳鼻咽喉   8篇
儿科学   20篇
妇产科学   5篇
基础医学   16篇
口腔科学   1篇
临床医学   48篇
内科学   44篇
皮肤病学   6篇
神经病学   2篇
特种医学   32篇
外科学   17篇
综合类   12篇
预防医学   22篇
眼科学   1篇
药学   3篇
中国医学   1篇
肿瘤学   7篇
  2023年   6篇
  2022年   5篇
  2021年   4篇
  2020年   3篇
  2019年   2篇
  2018年   3篇
  2017年   4篇
  2016年   7篇
  2015年   10篇
  2014年   11篇
  2013年   13篇
  2012年   7篇
  2011年   2篇
  2010年   4篇
  2009年   12篇
  2008年   11篇
  2007年   9篇
  2006年   6篇
  2005年   10篇
  2004年   8篇
  2003年   4篇
  2002年   3篇
  2001年   1篇
  2000年   2篇
  1999年   3篇
  1998年   12篇
  1997年   9篇
  1996年   12篇
  1995年   4篇
  1994年   12篇
  1993年   8篇
  1992年   4篇
  1991年   3篇
  1990年   4篇
  1989年   1篇
  1988年   1篇
  1987年   6篇
  1985年   2篇
  1984年   2篇
  1982年   2篇
  1980年   2篇
  1979年   2篇
  1978年   1篇
  1977年   4篇
  1975年   2篇
  1966年   1篇
  1962年   1篇
排序方式: 共有245条查询结果,搜索用时 31 毫秒
1.
2.
3.
4.
5.
6.
7.
Severe malaria in children in Papua New Guinea   总被引:1,自引:0,他引:1  
The clinical features of severe falciparum malaria and risk factors for mortality were studied in 489 children admitted with malaria to Madang Hospital, Papua New Guinea. The most common severe manifestations of malaria were severe anaemia (22%) and coma (16%). Children with severe anaemia were younger than those with coma (median age 2.2 vs. 3.7 years) and had been ill for longer before admission (median 7 vs. 4 days, respectively). Although the clinical features of coma in Madang children with malaria resembled closely those reported in African children, mortality was lower (8% vs. 17-25%, respectively). Overall, 17 (3.5%) children died, most within 12 h of admission. A high level of plasma lactate (> or = 5 mmol/l) was common (20%) and was the major predictor of death in multiple regression analysis. Raised plasma creatinine and decreased plasma bicarbonate were also independent predictors of mortality. Coma was not predictive of death, although a high proportion of children with profound coma died. Investigation of the causes of acidosis in children with malaria is a high research priority. In view of the short time interval between admission and death in many children, emphasis must be placed on the prevention or early recognition and treatment of acidosis in the district health clinic as well as the central hospital.   相似文献   
8.
Chronic orofacial pain of neuropathic origin can present diagnostic and management dilemmas to dental practitioners and also affects the patient's quality of life. Intracranial aneurysms are a potential cause of stroke (e.g. sub‐arachnoid haemorrhage) that is usually associated with, high rates of mortality and morbidity. A patient who had been previously managed for symptoms of temporomandibular joint disorder (TMD) presented with sharp, shooting pain of moderate intensity. It was precipitated by swallowing, and radiated to the right throat, posterior border of the mandible, ear and temporomandibular joint. Clinical and radiological investigations ruled out odontogenic pain, TMD and other more common types of facial pain. Magnetic resonance imaging revealed a 7 × 6 mm aneurysm in the right middle cerebral artery (MCA) which was subsequently surgically clipped. Interestingly, the facial pain resolved after this procedure. Compression of the insular region of the brain innervated by the trigeminal, glossopharyngeal and vagus nerves provides a plausible explanation for the pain reported. To our knowledge, this is the first case of facial neuralgia associated with an aneurysm in the MCA which emphasizes the importance of a multidisciplinary approach in the diagnosis and management of unusual cases of chronic orofacial pain.  相似文献   
9.
10.
Patterns of Depressive Symptoms in Children   总被引:1,自引:0,他引:1  
PROBLEM: Depressive symptoms in children have been linked to recurrent problems with depression, school problems, and risky health behaviors. Adolescent girls report depressive symptoms three to four times more frequently than adolescent boys. Few studies, however, have examined gender-related depressive symptoms in younger, school-aged children. METHODS: In the present study, gender differences in depressive symptoms in children ages 10-12 years were explored using the Children's Depression Inventory (CDI) with a convenience sample of 122 suburban middle-class public school fifth and sixth graders. FINDINGS: A distinct pattern of depressive symptom expression was found with girls reporting more internalizing and more negative self-esteem, and boys reporting more externalizing and more school problems. CONCLUSION: These findings suggest that despite similarities on a total depressive symptom score, there are distinct gender differences in depressive symptom expression that are identifiable before adolescence and may be associated with normative development.  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