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   338篇
  免费   22篇
  国内免费   24篇
儿科学   29篇
妇产科学   5篇
基础医学   25篇
口腔科学   8篇
临床医学   34篇
内科学   89篇
皮肤病学   5篇
神经病学   12篇
特种医学   44篇
外科学   36篇
综合类   40篇
预防医学   10篇
眼科学   5篇
药学   21篇
肿瘤学   21篇
  2022年   3篇
  2021年   2篇
  2020年   4篇
  2019年   4篇
  2018年   5篇
  2017年   5篇
  2016年   4篇
  2015年   7篇
  2014年   10篇
  2013年   13篇
  2012年   4篇
  2011年   5篇
  2010年   14篇
  2009年   17篇
  2008年   12篇
  2007年   21篇
  2006年   10篇
  2005年   5篇
  2004年   8篇
  2003年   13篇
  2002年   12篇
  2001年   15篇
  2000年   6篇
  1999年   6篇
  1998年   22篇
  1997年   19篇
  1996年   21篇
  1995年   9篇
  1994年   19篇
  1993年   11篇
  1992年   5篇
  1991年   6篇
  1989年   8篇
  1988年   14篇
  1987年   5篇
  1986年   7篇
  1985年   5篇
  1984年   6篇
  1983年   2篇
  1982年   5篇
  1981年   5篇
  1980年   5篇
  1978年   1篇
  1977年   2篇
  1976年   1篇
  1975年   1篇
排序方式: 共有384条查询结果,搜索用时 140 毫秒
381.
OBJECTIVE: To determine the frequency of detection of human herpesvirus-8 (HHV-8) in HIV-related oral ulcers. DESIGN: Analysis of archived biopsy material. METHODS: Nested polymerase chain reaction of DNA extracts. RESULTS: HHV-8 DNA was detected in six of 10 oral ulcers of HIV-positive patients without oral Kaposi's sarcoma (KS) lesions and five of 11 oral KS lesions. The positive non-KS samples were derived from various oral sites. CONCLUSIONS: In HIV-positive people, HHV-8 can infect oral tissues that are not affected by KS.  相似文献   
382.
Bronchial asthma is an inflammatory condition. The inflammatory actions of leukotrienes (LT) B4, C4, D4, and E4 have been shown experimentally to play a role in inflammatory mechanisms, producing asthma. Antileukotrienes (ALT) or leukotrienes antagonists (LA) is a new class of anti-asthma drugs with anti-inflammatory role. LT modifiers from the groups of 5 lipoxygenase inhibitor and Cys LT1 receptor antagonists, are found useful in asthma therapy. LAs are of main use in young infants and toddler with recurrent wheezing, children with moderate to severe chronic asthma on steroid therapy and in allergic rhinitis. In chronic asthma they are required to be used for prolonged periods with other anti-asthma agents. Except for Montelukast and Zafirlukast, which can be used in children above two and six years of age respectively, the paediatric use of other agents is yet to be established. However, these agents are essentially safe. The cost of LAs is reasonably high. At present, with available evidence, these drugs are considered promising in management of asthma in children. However, there is need to do more long term clinical trials for ascertaining their effectivity in different types of asthma to compare their effects with long acting B2 agnoists and chromones, so as to optimally explore their utility.Key Words: Antileukotrienes, Asthma, Children, LeukotrienesAsthma is an inflammatory disease. The effective therapeutic intervention is based on use of anti-inflammatory drugs. At present, steroids are being used in aerosol/oral and parenteral forms. Corticosteroid therapy has inherent difficulties of administration and side effects. Therefore, newer group of drugs called ALT, LA or leukotrienes modifiers are being explored. The ALT represent a new class of mediator specific, anti-inflammatory anti-asthma drugs. Consequent to the studies showing their effectiveness in paediatric age group, ALT are soon going to establish their place in childhood asthma management [1, 2].  相似文献   
383.

Background  

Mounting evidence has indicated that ABI3 (ABI family member 3) function as a tumor suppressor gene, although the molecular mechanism by which ABI3 acts remains largely unknown.  相似文献   
384.

Objectives and Aims

To compare guideline recommendations with daily practice patterns in a German patient cohort with renal cell carcinoma.

Patients and methods

81 patients with T1 oder T2 renal cell carcinoma (RCC) were included in this prospective single-center study. All patients were operated in a single institution either by open radical nephrectomy (ORN) or nephron sparing surgery (NSS). Patients and doctors were evaluated using a written questionnaire with a follow-up of 12 months. Follow-up intervals, follow-up modalities (e. g. imaging modalities, laboratory controls of blood and urine) and the call on psycho-oncological support were evaluated.

Results

The majority of patients (72%) were followed up by their urologists. Follow-up examinations included abdominal ultrasound, urine and blood diagnostics, conventional chest x-rays, computed tomography (CT) of abdomen, chest or head or abdominal Magnetic Resonance Imaging (MRI). There were no significant differences between patients operated by ORN or NSS. In total, 12.5% of patients were asking for psycho-oncological support.

Conclusions

In general, patients were followed up according to existing guideline recommendations. Only a small proportion of patients asked for psycho-oncological treatment.  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