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   398篇
  免费   19篇
耳鼻咽喉   1篇
儿科学   6篇
妇产科学   24篇
基础医学   38篇
口腔科学   15篇
临床医学   53篇
内科学   55篇
皮肤病学   8篇
神经病学   66篇
特种医学   56篇
外科学   33篇
综合类   4篇
预防医学   14篇
眼科学   15篇
药学   14篇
肿瘤学   15篇
  2024年   1篇
  2023年   7篇
  2022年   3篇
  2021年   8篇
  2020年   8篇
  2019年   18篇
  2018年   12篇
  2017年   6篇
  2016年   6篇
  2015年   5篇
  2014年   5篇
  2013年   18篇
  2012年   39篇
  2011年   39篇
  2010年   16篇
  2009年   15篇
  2008年   12篇
  2007年   29篇
  2006年   16篇
  2005年   15篇
  2004年   11篇
  2003年   19篇
  2002年   14篇
  2001年   5篇
  2000年   10篇
  1999年   3篇
  1998年   2篇
  1997年   5篇
  1996年   4篇
  1994年   3篇
  1992年   5篇
  1991年   1篇
  1990年   7篇
  1989年   10篇
  1988年   4篇
  1987年   5篇
  1986年   7篇
  1985年   8篇
  1984年   6篇
  1983年   4篇
  1982年   1篇
  1980年   1篇
  1977年   1篇
  1972年   1篇
  1968年   1篇
  1956年   1篇
排序方式: 共有417条查询结果,搜索用时 15 毫秒
1.
Objective Changes in serum albumin may reflect systemic immunoinflammation and hypermetabolism in response to insults such as trauma and sepsis. Esophagectomy is associated with a major metabolic stress, and the aim of this study was to determine if the absolute albumin level on the first postoperative day was of value in predicting in-hospital complications. Methods A retrospective study of 200 patients undergoing esophagectomy for malignant disease at St. James Hospital between 1999 and 2005 was performed. Patients who had pre and postoperative (days 1, 3, and 7) serum albumin levels measured were included in the study. Patients were subdivided into three postoperative albumin categories <20 g/l, 20–25 g/l, >25 g/l. Logistic regression analysis was performed to calculate the odds of morbidity and mortality according to the day 1 albumin level. Results Patients with an albumin of less than 20 g/l on the first postoperative day were twice as likely to develop postoperative complications than those with an albumin of greater than 20 g/l (54 vs 28% respectively, p < 0.011). Correspondingly, these patients also had a significantly higher rate of Adult Respiratory Distress Syndrome (22 vs 5%, p < 0.001), respiratory failure (27 vs 8%, p < 0.01) and in-hospital mortality (27 vs 6% (p < 0.001). On multivariate logistic regression analysis, day 1 albumin level was independently related to postoperative complications (odds ratios, 0.89: 95%; confidence intervals, 0.83–0.96; p < 0.005). In addition, albumin <20 g/l on the first postoperative day was associated with the need for further surgery and a return to ICU. Conclusion Serum albumin concentration on the first postoperative day is a better predictor of surgical outcome than many other preoperative risk factors. It is a low cost test that may be used as a prognostic tool to detect the risk of adverse surgical outcomes.  相似文献   
2.
3.
4.
Four women are described with acute salpingitis confirmed by laparoscopy who had herpes simplex virus (HSV) isolated from the cervix or the upper genital tract (endometrium, fallopian tube, or cul-de-sac) or both. None of the patients had overt genital herpes, but one had typical HSV cervitis on a cervicovaginal smear stained with Papanicolaou's stain, one had a significant change in level of antibodies to HSV, and one had an endometrial biopsy specimen positive for HSV antigen. There are at least three potential explanations for these findings: chronic viral shedding, viral reactivation caused by acute pelvic inflammatory disease (PID), or that the PID was actually caused by HSV. Further prospective studies are needed to document the role of HSV in causing PID.  相似文献   
5.
6.
7.
8.
9.
10.
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