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   3355篇
  免费   322篇
  国内免费   26篇
耳鼻咽喉   9篇
儿科学   168篇
妇产科学   89篇
基础医学   405篇
口腔科学   214篇
临床医学   396篇
内科学   484篇
皮肤病学   59篇
神经病学   188篇
特种医学   301篇
外科学   447篇
综合类   95篇
预防医学   308篇
眼科学   82篇
药学   278篇
  1篇
中国医学   24篇
肿瘤学   155篇
  2021年   58篇
  2020年   34篇
  2019年   44篇
  2018年   66篇
  2017年   48篇
  2016年   46篇
  2015年   78篇
  2014年   107篇
  2013年   155篇
  2012年   138篇
  2011年   147篇
  2010年   128篇
  2009年   102篇
  2008年   146篇
  2007年   149篇
  2006年   143篇
  2005年   106篇
  2004年   99篇
  2003年   88篇
  2002年   108篇
  2001年   63篇
  2000年   55篇
  1999年   70篇
  1998年   112篇
  1997年   93篇
  1996年   73篇
  1995年   70篇
  1994年   46篇
  1993年   60篇
  1992年   32篇
  1991年   53篇
  1990年   35篇
  1989年   64篇
  1988年   60篇
  1987年   44篇
  1986年   45篇
  1985年   37篇
  1984年   50篇
  1983年   35篇
  1982年   40篇
  1981年   35篇
  1980年   48篇
  1979年   34篇
  1978年   41篇
  1977年   39篇
  1976年   28篇
  1975年   24篇
  1974年   37篇
  1973年   29篇
  1971年   22篇
排序方式: 共有3703条查询结果,搜索用时 15 毫秒
1.
ABSTRACT

Objective

To investigate primary care physician clinical practice patterns, barriers, and education surrounding pediatric physical activity (PA), and to compare practice patterns by discipline.  相似文献   
2.
3.
A case illustrating the potentially fatal complication of endogenous Gram Negative Aerobic Bacillus (GNAB) septicaemia secondary to nosocomial pneumonia is presented along with current theories as to its aetiology. The technique of selective decontamination of the digestive tract is designed and advocated to prevent such occurrences; oral and maxillofacial surgeons should be aware of this approach. It may be, however, that by using much simpler manoeuvres such as changes in policy regarding gastric stress ulcer prophylaxis, the already small risk of such an occurrence will be further reduced. Awareness of this condition will allow a higher index of suspicion when presented with catastrophic septic complications on the ITU and aid in more rational planning of antimicrobial therapy.  相似文献   
4.

Background  

Cerebral arterial gas embolism is a potentially life-threatening event. Intraarterial air can occlude blood flow directly or cause thrombosis. Sclerotherapy is an extremely rare cause of cerebral arterial gas embolism.  相似文献   
5.
6.
7.
Assessment of quality of life in children with peanut allergy   总被引:5,自引:0,他引:5  
Children with a peanut allergy (PA) are faced with food and social restrictions due to the potentially life-threatening nature of their disease, for which there is no cure or treatment. This inevitably impacts upon their quality of life (QoL). QoL of 20 children with PA and 20 children with insulin-dependent diabetes mellitus (IDDM) was measured using two disease-specific QoL questionnaires (higher scores correspond to a poorer QoL). One questionnaire was designed by us and the other was adapted from the Vespid Allergy QoL questionnaire. We gave subjects cameras to record how their QoL is affected over a 24-h period. Response rates for both questionnaires were 100%. Mean ages were 9.0 and 10.4 years for PA and IDDM subjects, respectively. Children with a PA reported a poorer quality of life than children with IDDM: mean scores were 54.85 for PA subjects and 46.40 for diabetics (p = 0.004) in questionnaire 1 and 54.30 and 34.50 (p≤0.001) in questionnaire 2. PA children reported more fear of an adverse event and more anxiety about eating, especially when eating away from home. Photographs fell into seven common categories: food, management, environment, away from home, physical activities, restaurant and people. Most photographs related to food and management issues and revealed difficulties for both groups regarding food restrictions. PA subjects felt more threatened by potential hazards within their environment, felt more restricted by their PA regarding physical activities, and worried more about being away from home. However, they felt safe when carrying epinephrine kits and were positive about eating at familiar restaurants. The QoL in children with PA is more impaired than in children with IDDM. Their anxiety may be considered useful in some situations, promoting better adherence to allergen avoidance advice and rescue plans.  相似文献   
8.
9.
Pyomyositis: characteristics at CT and MR imaging   总被引:9,自引:0,他引:9  
Gordon  BA; Martinez  S; Collins  AJ 《Radiology》1995,197(1):279
  相似文献   
10.
SUMMARY A case is reported of pseudohyperphosphataemia in association with a monoclonal gammopathy of undetermined significance.  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