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   919篇
  免费   29篇
  国内免费   2篇
耳鼻咽喉   5篇
儿科学   52篇
妇产科学   4篇
基础医学   89篇
口腔科学   33篇
临床医学   44篇
内科学   135篇
皮肤病学   37篇
神经病学   12篇
特种医学   55篇
外科学   107篇
综合类   288篇
预防医学   30篇
眼科学   2篇
药学   16篇
  1篇
中国医学   1篇
肿瘤学   39篇
  2023年   2篇
  2022年   9篇
  2021年   11篇
  2020年   10篇
  2019年   6篇
  2018年   11篇
  2017年   5篇
  2016年   9篇
  2015年   30篇
  2014年   26篇
  2013年   27篇
  2012年   36篇
  2011年   38篇
  2010年   67篇
  2009年   52篇
  2008年   50篇
  2007年   57篇
  2006年   55篇
  2005年   38篇
  2004年   55篇
  2003年   25篇
  2002年   34篇
  2001年   31篇
  2000年   23篇
  1999年   24篇
  1998年   27篇
  1997年   35篇
  1996年   30篇
  1995年   17篇
  1994年   21篇
  1993年   8篇
  1992年   7篇
  1991年   3篇
  1990年   3篇
  1989年   6篇
  1988年   8篇
  1987年   5篇
  1986年   8篇
  1985年   5篇
  1984年   4篇
  1983年   2篇
  1982年   7篇
  1981年   4篇
  1980年   2篇
  1978年   5篇
  1977年   2篇
  1976年   4篇
  1972年   1篇
  1955年   1篇
  1953年   1篇
排序方式: 共有950条查询结果,搜索用时 921 毫秒
1.
BACKGROUND: The present study was aimed to define the gender ratio, familial occurrence, age of onset, precipitating factors, clinical types, nail and joint involvement of psoriasis in childhood and adolescence in Turkey. METHODS: A total of 61 children with psoriasis under 18 years old were evaluated retrospectively, for age, gender, age of disease onset, family history, concomitant disease, the clinical type of psoriasis, clinical localization, nail and joint involvement and treatment modalities. RESULTS: Of the patients, 23 (37.70%) were boys and 38 (62.30%) were girls. Mean age was 9.28 +/- 4.02 years in girls and 11.18 +/- 3.85 years in boys (9.96 +/- 4.03 years in all children). Mean age at the onset of the disease was 6.81 +/- 4.11 years in girls and 7.03 +/- 4.28 years in boys (6.89 +/- 4.14 years in all patients). In 14 (23%) cases, a positive family history was detected. The most frequent probable triggering factors were upper respiratory tract infections (14.8%) and positive throat culture for A group ss-hemolytic streptococcus (21.3%). Frequency of emotional stress and psychiatric morbidity were 54% and 9.8%, respectively. The most frequent localizations at onset were trunk (44.3%), extremities (54.0%), and scalp (36.0%). Three children (4.9%) had a history of dissemination from psoriatic diaper rash. In total, 51 (83.6%) patients presented with psoriasis vulgaris, eight (13.1%) with generalized pustular psoriasis, and the remaining two (3.3%) with erythrodermic psoriasis. CONCLUSION: The incidence of psoriasis among dermatological patients in childhood and adolescence was 3.8%. The disease tends to appear earlier in girls than boys. The authors suggested that stress and upper respiratory infections are the most important triggering factors in childhood and adolescence psoriasis.  相似文献   
2.
3.
There is no indigenous mosquito-borne transmission of malaria in Kuwait. However, in a five year period at a district general hospital, the number of laboratory-diagnosed cases of malaria increased annually from 25 to 84, a rise of 336%. Except for two induced infections, all were imported, mainly from the Indian subcontinent. Plasmodium vivax was responsible for 87.29% of the cases; P. falciparum (12.05%), a mixed infection of P. vivax and P. falciparum (0.33%) and a case of P. ovale (0.33%) were also identified. Rapid preparation of acetone-fixed, Giemsa-stained thick blood films, a heightened awareness of the infection, examination of multiple samples of blood from patients and the general resurgence of malaria in endemic areas were some of the factors responsible for the high number of cases diagnosed. Most patients were young males and presented with clinical malaria due to P. vivax between May and October each year, an apparent seasonal peak. However, many were already resident in the country for a variable period. Patients with P. falciparum though, presented clinically within two weeks of arrival in the country. Parasite densities were calculated to monitor the progress of treatment and identify quickly any possible chloroquine-resistant P. falciparum strains. A policy of active prophylaxis is suggested to stem the tide of imported malaria.Corresponding author.  相似文献   
4.
5.
6.
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