首页 | 官方网站   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   897797篇
  免费   63559篇
  国内免费   2324篇
医药卫生   963680篇
  2018年   9069篇
  2017年   7184篇
  2016年   7683篇
  2015年   8742篇
  2014年   12396篇
  2013年   19238篇
  2012年   25699篇
  2011年   27305篇
  2010年   16591篇
  2009年   15795篇
  2008年   26160篇
  2007年   27759篇
  2006年   27932篇
  2005年   27481篇
  2004年   26310篇
  2003年   25484篇
  2002年   25076篇
  2001年   41377篇
  2000年   42569篇
  1999年   36284篇
  1998年   9975篇
  1997年   9155篇
  1996年   9087篇
  1995年   8450篇
  1994年   8082篇
  1993年   7586篇
  1992年   28208篇
  1991年   26999篇
  1990年   26425篇
  1989年   25361篇
  1988年   23563篇
  1987年   23187篇
  1986年   22266篇
  1985年   21150篇
  1984年   15790篇
  1983年   13453篇
  1982年   8049篇
  1979年   14582篇
  1978年   10186篇
  1977年   8605篇
  1976年   8123篇
  1975年   8942篇
  1974年   10681篇
  1973年   10168篇
  1972年   9661篇
  1971年   8912篇
  1970年   8578篇
  1969年   8014篇
  1968年   7676篇
  1967年   7080篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
111.
Abstract

This study is a single-center, retrospective analysis of postmenopausal women presenting with dyspareunia and vulvar pain, aiming to evaluate relative effectiveness of vestibular CO2 laser therapy as a treatment. Three monthly sessions of laser were performed to each patient and thereafter a three-months follow-up was stablished. A total number of 72 patients undergoing vestibular laser treatment were recruited from patient files in the period between 2016 and 2018. Among these, 39 women also received a concomitant treatment with ospemifene (60?mg/day) during the study period. There was a statistically significant reduction of all the symptoms in both groups up to the three month follow-up. Regarding dryness and dyspareunia, the relief tent to be more prominent in the ospemifene?+?laser group at all follow-ups and remained statistically significant at three-month follow-up. Specifically, vestibular dryness was significantly lower in the ospemifene?+?laser group compared with the laser treatment group (?87% vs???34%, respectively), and the vestibular health score started declining faster in the ospemifene?+?laser group. Although, additional research is needed to understand the mechanism of action, our data shows that a combination regimen of laser and ospemifene may improve clinical effectiveness for long-term treatment of symptoms associated with the under-recognized genitourinary syndrome of menopause.  相似文献   
112.
113.
114.
115.
116.
117.
118.
Traditionally, major complications and unanticipated admission/readmission rates were used to assess outcome after day surgery. However, in view of the relative absence of major complications the quality of recovery (QOR) should be considered one of the principal endpoints after day surgery. In our study, the level of QOR is defined by a combination of the Global Surgical Recovery (GSR) Index and the Quality of Life (QOL).The aim of this study was to analyze prevalence and predictors of QOR after day surgery on the fourth postoperative day.Elective patients scheduled for day surgery from November 2008 to April 2010 were enrolled in a prospective cohort study. Outcome parameters were measured by using questionnaire packages at 2 time points: 1 week preoperatively and 4 days postoperatively. Primary outcome parameter is the QOR and is defined as good if the GSR index >80% as well as the postoperative QOL is unchanged or improved as compared with baseline. QOR is defined as poor if both the GSR index ≤80% and if the postoperative QOL is decreased as compared with baseline. QOR is defined as intermediate in all other cases. Three logistic regression analyses were performed to determine predictors for poor QOR after day surgery.A total of 1118 patients were included. A good QOR was noted in 17.3% of patients, an intermediate QOR in 34.8%, and a poor QOR in 47.8% 4 days after day surgery. The best predictor for poor QOR after day surgery was type of surgery. Other predictors were younger age, work status, and longer duration of surgery. A history of previous surgery, expected pain (by the patient) and high long-term surgical fear were significant predictors of poor QOR in only 1 of 3 prediction models.The QOR at home 4 days after day surgery was poor in the majority of patients and showed a significant procedure-specific variation. Patients at risk for poor QOR can be identified during the preoperative period based on type of surgery, age, work status, and the duration of the surgery.  相似文献   
119.
120.
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-23

京公网安备 11010802026262号