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   658篇
  免费   173篇
  国内免费   16篇
耳鼻咽喉   10篇
儿科学   25篇
妇产科学   10篇
基础医学   15篇
口腔科学   6篇
临床医学   150篇
内科学   220篇
皮肤病学   25篇
神经病学   57篇
特种医学   14篇
外科学   198篇
预防医学   54篇
眼科学   15篇
药学   2篇
肿瘤学   46篇
  2024年   3篇
  2023年   31篇
  2022年   7篇
  2021年   21篇
  2020年   28篇
  2019年   10篇
  2018年   45篇
  2017年   47篇
  2016年   42篇
  2015年   38篇
  2014年   49篇
  2013年   72篇
  2012年   23篇
  2011年   27篇
  2010年   29篇
  2009年   50篇
  2008年   23篇
  2007年   5篇
  2006年   16篇
  2005年   10篇
  2004年   4篇
  2003年   10篇
  2001年   8篇
  2000年   6篇
  1999年   14篇
  1998年   12篇
  1997年   16篇
  1996年   33篇
  1995年   27篇
  1994年   11篇
  1993年   11篇
  1992年   5篇
  1991年   13篇
  1990年   6篇
  1989年   10篇
  1988年   4篇
  1987年   5篇
  1986年   10篇
  1985年   5篇
  1984年   13篇
  1983年   4篇
  1981年   3篇
  1980年   3篇
  1979年   3篇
  1978年   3篇
  1977年   3篇
  1976年   5篇
  1975年   4篇
  1971年   3篇
  1964年   3篇
排序方式: 共有847条查询结果,搜索用时 15 毫秒
51.
52.
The use of opioids in neonates. A retrospective study of 933 cases   总被引:2,自引:0,他引:2  
G. Purcell-Jones  BSc  MRCP  FFARCS  F. Dormon  MB  BS  FFARCS  Registrars E. Sumner  BM  BCh  FFARCS  Consultant 《Anaesthesia》1987,42(12):1316-1320
This is a retrospective study on the use of postoperative opioids in neonates admitted to the surgical intensive care unit at Great Ormond Street over a 5-year period (1980-84). A total of 131 (14%) babies received opioids out of 933 neonates admitted to the unit. The use of opioids increased from 9.7% to 27.2% of admitted cases during the survey period. Postoperative ventilation of the lungs was necessary in 240 (25.7%) cases and 88 (36.6%) of these were given opioids. Four babies initially failed to wean from controlled ventilation as a result of opioid induced respiratory depression. A total of 51 (7.35%) spontaneously breathing neonates received opioids and seven (13.7%) of these developed apnoea or respiratory failure thought to be induced by opioids. The administration of opioids by nurses occurred most frequently in the late evening and early hours of the morning, when medical cover is at its lowest level.  相似文献   
53.
54.
55.
During the next several decades, the aging of the "baby boom" generation in the United States will result in a dramatic increase in the number of patients aged 65 and older seeking medical care, but current projections suggest that the shortage of geriatrics-trained specialists will only worsen during this time period. As a result, the care of elderly patients will largely fall to other types of physicians. Consequently, it is imperative that medical school training include exposure to the basic skills needed to care safely for older adults. This goal is challenging, because the number of geriatric medicine faculty in most academic medical centers is small, and multiple other medical specialties are also vying for time in a busy medical school curriculum. Whether a 3-day course conducted during the third year of medical school could teach basic principles of geriatric medicine in a time- and manpower-effective manner was explored. It was found that even this brief exposure to geriatrics could have meaningful effects on student knowledge of and comfort with geriatrics.  相似文献   
56.
Phenelzine poisoning   总被引:1,自引:0,他引:1  
F. X. BREHENY  MB  BCh  BAO  FFARCSI  FFARACS    G. J. DOBB  MSc. MB  BS  MRCP  FFARCS  G. M. CLARKE  MB  BS  FFARCS  FFARACS 《Anaesthesia》1986,41(1):53-56
A 46-year-old female with severe phenelzine poisoning was managed successfully by alpha blockade and fluid loading, with the aid of invasive haemodynamic monitoring. The pathophysiology was documented, showing elevated plasma and urinary catecholamines, cardiovascular abnormalities and a contracted blood volume. Most of these changes were reversed following treatment.  相似文献   
57.
N. D. Edwards  MB  BS  FCAnaes    K. Barclay  MB  ChB    S. J. Catling  BA  MB  BS  FFARCS    D. G. Martin  BSc  MB  BCh  MRCP  FFARCS    R. H. Morgan  MA  MBBChir  DObstRCOG  FFARCS   《Anaesthesia》1991,46(12):1077-1080
A randomised, controlled study was undertaken to assess the postoperative pain and side effects experienced by patients undergoing day case diagnostic laparoscopy and laparoscopic sterilisation, and to evaluate the effectiveness in these patients of peroperative diclofenac. Patients undergoing laparoscopic sterilisation had significantly higher pain scores at one hour postoperatively, and at discharge, than patients undergoing diagnostic laparoscopy (p less than 0.01) but there were no significant differences in pain scores 24 hours after discharge. The incidence of postoperative side effects following discharge from hospital was high, but there were no significant differences between the groups. Diclofenac had no significant effect in either group on the severity of postoperative pain, or the incidence of postoperative side effects.  相似文献   
58.
59.
60.
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