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   5470篇
  免费   612篇
  国内免费   170篇
耳鼻咽喉   56篇
儿科学   220篇
妇产科学   155篇
基础医学   120篇
口腔科学   84篇
临床医学   1228篇
内科学   1226篇
皮肤病学   115篇
神经病学   314篇
特种医学   190篇
外科学   1608篇
综合类   11篇
预防医学   320篇
眼科学   325篇
药学   51篇
肿瘤学   229篇
  2023年   106篇
  2021年   63篇
  2020年   97篇
  2019年   42篇
  2018年   125篇
  2017年   172篇
  2016年   182篇
  2015年   137篇
  2014年   224篇
  2013年   295篇
  2012年   91篇
  2011年   107篇
  2010年   230篇
  2009年   334篇
  2008年   122篇
  2007年   63篇
  2006年   100篇
  2005年   71篇
  2003年   49篇
  2002年   41篇
  2001年   106篇
  2000年   70篇
  1999年   133篇
  1998年   175篇
  1997年   200篇
  1996年   302篇
  1995年   254篇
  1994年   201篇
  1993年   117篇
  1992年   123篇
  1991年   136篇
  1990年   68篇
  1989年   134篇
  1988年   106篇
  1987年   79篇
  1986年   103篇
  1985年   88篇
  1984年   89篇
  1983年   74篇
  1982年   67篇
  1981年   62篇
  1980年   81篇
  1979年   41篇
  1978年   60篇
  1977年   42篇
  1976年   43篇
  1975年   45篇
  1972年   39篇
  1964年   50篇
  1963年   49篇
排序方式: 共有6252条查询结果,搜索用时 0 毫秒
991.
I. W. McConachie  MB  ChB  FFARCS    A. Day  RSCN  SRN 《Anaesthesia》1989,44(12):986-990
There are no published comprehensive surveys of paediatric recovery room experience and the incidence of complications. A prospective survey was made of 16,700 consecutive admissions to the recovery room at the Royal Manchester Children's Hospital during the years 1985-1988. The incidence of respiratory complications was low, with laryngospasm 0.85%. The incidence of hypotension was higher than that in adult studies; over 50% of children recorded a decrease in blood pressure in the recovery room of more than 20%, compared to values before operation. The incidence of vomiting in the recovery room was also lower than in comparable adult studies. Certain aspects of recovery room practice changed during the 4 years of the study; these included routine oxygen administration, parents in the recovery room, and our approach to postoperative analgesia. The implications of these changes are discussed.  相似文献   
992.
Premedication for children with oral trimeprazine and droperidol   总被引:1,自引:0,他引:1  
D. J. LAYFIELD  MB  ChB  FFARCS  A. K. Y. WALKER  MB  BS  FFARCS 《Anaesthesia》1984,39(1):32-34
In 60 children aged 1-9 years, weighing under 33 kg, oral trimeprazine and oral trimeprazine plus droperidol were compared as premedicants in a controlled, double-blind clinical trial. The addition of droperidol to the trimeprazine syrup produces greater uniformity in pre-operative sedation, a low incidence of postoperative vomiting, and a reduced requirement for postoperative analgesia.  相似文献   
993.
SUMMARY We have surveyed the use of intravenous cannulae (IVC) in a district general hospital. Of 354 patients interviewed on various wards, 125 (35.3%) had IVC in situ. The wrist was the commonest location for the cannulae (41.6%). An indication for cannula insertion was present in the majority (93.7%) of patients. Cannulae were left in situ even after their use had ceased, most commonly on wards for the elderly, and on these wards complications were more common. Other wards had specific IVC documentation, which resulted in fewer complications. Cannulae should be used for specific indications and should be reviewed daily for the development of complications and the need for their continued presence.  相似文献   
994.
995.
D.R. GOLDHILL  MA  MB  BS  FRCA  P. STUART WITHINGTON  MB  BS  FRCA  MBES 《Anaesthesia》1996,51(12):719-723
  相似文献   
996.
C. Mather  MB  ChB  FRCA    S. O'Kelly  MB  ChB  DCH  FRCA   《Anaesthesia》1996,51(2):189-191
  相似文献   
997.
998.
999.
Summary: Data were obtained from 1,810 consecutive women who attended a central metropolitan (Brisbane) Family Planning Clinic during a 5 week period in 1982. Young women in particular formed the major client group with 32% being under 20 years of age. The client population was skewed towards women of upper socioeconomic status (SES). There was no SES disproportion in the use of oral contraceptives or IUD's. However, diaphragm use occurred disproportionately in women of upper SES groups; postcoital contraception was sought by and limited to, women of SES classes A and B only. The clinic satisfied a need for women with a history of failed or absent contraception and 15% had already had a termination of pregnancy by the time they first presented at the clinic.  相似文献   
1000.
G.J.A. Laycock  BM  FFARCS  DCH  DRCOG    L.R. McNicol  MB  ChB  FFARCS   《Anaesthesia》1988,43(11):981-984
Arterial oxygen saturation was measured using pulse oximetry during induction of anaesthesia in 108 children aged 10 days--14 years. No restriction was placed on the method of induction. Oxygen saturation decreased to less than 90% in 29 children (26.8%) and less than 80% in seven children (6.4%). There was a significantly increased incidence of desaturation (to less than 90%) in children under one year of age, in those who had no premedication, in those who received only atropine as a premidicant and in children who were anxious or crying before intravenous induction. Oxygen saturation did not decrease below 90% in any child who received inhalational induction.  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