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   1117篇
  免费   58篇
  国内免费   24篇
耳鼻咽喉   3篇
儿科学   37篇
妇产科学   25篇
基础医学   127篇
口腔科学   20篇
临床医学   167篇
内科学   256篇
皮肤病学   47篇
神经病学   72篇
特种医学   109篇
外科学   76篇
综合类   75篇
预防医学   59篇
眼科学   23篇
药学   61篇
中国医学   2篇
肿瘤学   40篇
  2021年   9篇
  2019年   7篇
  2018年   7篇
  2017年   6篇
  2016年   16篇
  2015年   14篇
  2014年   24篇
  2013年   59篇
  2012年   18篇
  2011年   26篇
  2010年   38篇
  2009年   35篇
  2008年   33篇
  2007年   44篇
  2006年   24篇
  2005年   26篇
  2004年   26篇
  2003年   24篇
  2002年   23篇
  2001年   27篇
  2000年   19篇
  1999年   29篇
  1998年   53篇
  1997年   50篇
  1996年   39篇
  1995年   29篇
  1994年   31篇
  1993年   38篇
  1992年   19篇
  1991年   20篇
  1990年   23篇
  1989年   40篇
  1988年   29篇
  1987年   27篇
  1986年   21篇
  1985年   16篇
  1984年   11篇
  1983年   11篇
  1982年   9篇
  1981年   10篇
  1980年   10篇
  1976年   7篇
  1975年   6篇
  1973年   6篇
  1965年   6篇
  1963年   6篇
  1960年   5篇
  1941年   11篇
  1926年   6篇
  1923年   5篇
排序方式: 共有1199条查询结果,搜索用时 15 毫秒
91.

Background  

Aneurysmal subarachnoid haemorrhage (aSAH) is a devastating event with a frequently disabling outcome. Our aim was to develop a prognostic model to predict an ordinal clinical outcome at two months in patients with aSAH.  相似文献   
92.
93.
94.
95.
96.
97.
The recent Sixth Report of the Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure (JNC) reiterated long-standing recommendations that Stage 1 hypertension (BP ≥ 140/90 mm Hg) without comorbidity should be treated initially with diuretics (DI) or beta blockers (BB). Yet market research suggests that many physicians prefer to use other drug classes, such as calcium channel blockers and ACE inhibitors.
OBJECTIVES: To explore the determinants of therapeutic choice in hypertension.
METHODS: We surveyed by mail a stratified random sample of 10,000 U.S. cardiologists, internists, and family/general practitioners. Physicians were queried about their practice environment and their knowledge, attitudes, and practices regarding antihypertensive therapy, including their choice of drugs to treat patients with specified clinical profiles. The probability that physicians would follow JNC guidelines Stage 1 hypertension was analyzed using multiple logistic regression with stepwise backward elimination to select variable with p < 0.001.
RESULTS: Completed surveys were received from 1,023 physicians. 86.7% prescribe drug therapy for Stage 1 hypertension, and 19.5% (22.5% of drug prescribers) limit their choices to DI and BB. Guideline conformity was higher among physicians who: practice in academic medical centrers; are older; are general practitioners (versus general internists); have smaller caseloads; have fewer hypertensive patients; have higher proportions of HMO, Medicaid, and uninsured patients; and experience more formulary restrictions. Cardiologists and family practitioners were less likely than internists to follow guidelines.
CONCLUSION: JNC guidelines are better accepted by academic physicians, older physicians who have more expenence using DI and BB, physicians with smaller caseloads and hence more time for follow-up and therapy adjustment, and physicians who face drug reimbursement constraints.  相似文献   
98.
99.
To clarify the demography of delayed sleep phase syndrome (DSPS), non-24-h sleep-wake syndrome, and irregular sleep-wake pattern in Japan, a cross-sectional nationwide epidemiological survey was conducted. 1525 adults (age: 15-59 years) were randomly sampled from telephone directories, and they received screening questions over the phone. Persons who were suspected of having the disorders were requested to fill out the second questionnaire, and asked to keep a sleep log for 4 weeks. Diagnoses were made according to the International Classification of Sleep Disorders criteria. As a result, the prevalence of DSPS was estimated to be 0.13%.  相似文献   
100.
NAILA USMANI  MBCHB  MRCP    JOANNE TEASDALE  R.N.  B.SC.  SPCC  NIP    SHEILA M. CLARK  MBCHB  MRCP 《Pediatric dermatology》2009,26(2):222-223
Abstract:   In the current financial climate where resources in the National Health Service are becoming increasingly limited, it is essential that the role of the pediatric dermatology nurse specialist remains appreciated and supported. Our pediatric dermatology nurse specialist was first employed in September 2002 having had 6 years experience nursing children with a wide variety of dermatologic conditions prior to her employment. She achieved her pediatric community nursing degree in 2003 undertaking the nurse prescribing extended formulary course in 2006, her training history representative of many nurse specialists. We present the results of an audit highlighting how the employment of our pediatric dermatology nurse specialist has led to a decrease in hospital admissions as well as providing a significant positive impact on waiting lists.  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