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   488篇
  免费   32篇
  国内免费   3篇
耳鼻咽喉   1篇
儿科学   6篇
妇产科学   4篇
基础医学   35篇
口腔科学   5篇
临床医学   51篇
内科学   104篇
皮肤病学   9篇
神经病学   28篇
特种医学   6篇
外科学   171篇
综合类   15篇
预防医学   21篇
眼科学   15篇
药学   26篇
肿瘤学   26篇
  2023年   10篇
  2022年   18篇
  2021年   29篇
  2020年   18篇
  2019年   14篇
  2018年   24篇
  2017年   16篇
  2016年   9篇
  2015年   15篇
  2014年   40篇
  2013年   38篇
  2012年   54篇
  2011年   41篇
  2010年   21篇
  2009年   12篇
  2008年   31篇
  2007年   30篇
  2006年   14篇
  2005年   16篇
  2004年   13篇
  2003年   10篇
  2002年   9篇
  2001年   5篇
  2000年   6篇
  1999年   6篇
  1998年   2篇
  1997年   1篇
  1996年   2篇
  1995年   1篇
  1993年   2篇
  1992年   3篇
  1991年   3篇
  1990年   1篇
  1989年   1篇
  1987年   1篇
  1980年   1篇
  1979年   1篇
  1976年   1篇
  1975年   2篇
  1974年   1篇
  1973年   1篇
排序方式: 共有523条查询结果,搜索用时 15 毫秒
511.
512.

BACKGROUND:

Therapeutic hypothermia (TH) is the first intervention to consistently show improved neurological outcomes in neonates with hypoxic ischemic encephalopathy (HIE). Since the recent introduction of TH for HIE in many centres, reviews of practices during the implementation of TH in Canada have not been published.

OBJECTIVE:

To determine if eligible neonates are being offered TH and to identify any barriers to the effective implementation of TH.

METHODS:

A retrospective review of neonates referred to a regional tertiary centre at a gestational age of 35 weeks or more with HIE was conducted.

RESULTS:

Among 41 neonates referred, 29 (71%) were eligible for TH; among eligible patients, five were moribund and excluded, and TH was initiated in 16 (67%) of the remaining 24. Reasons for not cooling in eight eligible patients included a delay in referral (n=5, median age at referral was 14 h) and a failure to recognize the severity of HIE (n=3). Among cooled patients, median times were the following: 116 min for age at referral; 80 min for time from referral to transport team arrival; and 358 min for age at initiation of cooling. Seven (44%) patients had cooling initiated after 6 h of age.

CONCLUSION:

A significant proportion of eligible patients were not offered TH, and in many cooled patients, initiation of cooling was delayed beyond the recommended 6 h. For eligible patients to benefit from TH, it is imperative that all birthing centres be made aware that TH is now widely available as an important treatment option, but also that TH is a time-sensitive therapy requiring rapid identification and referral. In the region studied, for eligible patients, referring hospitals should initiate passive cooling before arrival of the transport team. Referring hospitals should be prepared to provide early, yet safe initiation of passive cooling by having the appropriate equipment, and having staff trained in the use and monitoring of rectal temperatures.  相似文献   
513.
514.
Cholecystectomy is one of the commonest operations performed throughout the world and bile duct injury is the worst complication of this procedure. In a prospective and retrospective study 25 patients were seen in a tertiary care hospital over a period of 10 years. 72% of patients were referred from other hospitals. 48% of patients presented within one month of injury. Pain was the commonest presentation (92%) followed by jaundice (80%). Liver functions were deranged in 70% of patients, USG revealed biliary dilatation in 69.6% of patients. ERCP was done in 16 patients and revealed cut off of the common hepatic duct in 43.8% of patients. Intraoperative findings revealed adhesions in 96% of patients. 48% of patients had bile duct stricture. Roux-en-Y hepaticojejunostomy was the commonest procedure performed. All patients showed improvement in liver function after surgery. Wound infection was the commonest complication seen in 32% patients. 3 patients died in our series.  相似文献   
515.
516.
517.
Rotaviruses are among the major causes of gastroenteritis and diarrhea among children in developed as well as the developing countries. The rapidly evolving strain prevalence and circulation have resulted in the emergence of novel strains over the period worldwide. The introduction of G12 prototype in 1987 from Philippines and subsequently re-emergence among most of the Asian countries along with USA and Europe has provoked new research horizons to address the global distribution of rotavirus serotypes. These newly emerging subtypes and their sustenance among the population have posed tremendous challenge to the development of an effectual vaccine with heterotypic protective efficacy. In Pakistan, no data is available regarding the prevalent rotavirus serotypes; therefore, this is the first study to report the prevalence of G12 strain in Pakistan in hospitalized children with diarrhea addressing a dire need of further large-scale epidemiological surveys to resolve the underlying rotavirus isolates in both the hospitalized and the community neonatal and child population before formulating the vaccine introduction policies in the country's routine immunization program.  相似文献   
518.
519.
520.
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