全文获取类型
| 收费全文 | 1966篇 |
| 免费 | 141篇 |
| 国内免费 | 6篇 |
专业分类
| 耳鼻咽喉 | 25篇 |
| 儿科学 | 83篇 |
| 妇产科学 | 46篇 |
| 基础医学 | 192篇 |
| 口腔科学 | 63篇 |
| 临床医学 | 176篇 |
| 内科学 | 449篇 |
| 皮肤病学 | 44篇 |
| 神经病学 | 96篇 |
| 特种医学 | 41篇 |
| 外科学 | 307篇 |
| 综合类 | 63篇 |
| 一般理论 | 5篇 |
| 预防医学 | 259篇 |
| 眼科学 | 39篇 |
| 药学 | 119篇 |
| 中国医学 | 8篇 |
| 肿瘤学 | 98篇 |
出版年
| 2023年 | 26篇 |
| 2022年 | 16篇 |
| 2021年 | 84篇 |
| 2020年 | 40篇 |
| 2019年 | 62篇 |
| 2018年 | 58篇 |
| 2017年 | 54篇 |
| 2016年 | 53篇 |
| 2015年 | 56篇 |
| 2014年 | 58篇 |
| 2013年 | 48篇 |
| 2012年 | 110篇 |
| 2011年 | 112篇 |
| 2010年 | 75篇 |
| 2009年 | 52篇 |
| 2008年 | 76篇 |
| 2007年 | 69篇 |
| 2006年 | 85篇 |
| 2005年 | 76篇 |
| 2004年 | 74篇 |
| 2003年 | 59篇 |
| 2002年 | 67篇 |
| 2001年 | 58篇 |
| 2000年 | 51篇 |
| 1999年 | 57篇 |
| 1998年 | 16篇 |
| 1996年 | 12篇 |
| 1995年 | 15篇 |
| 1992年 | 33篇 |
| 1991年 | 34篇 |
| 1990年 | 24篇 |
| 1989年 | 23篇 |
| 1988年 | 18篇 |
| 1987年 | 17篇 |
| 1986年 | 18篇 |
| 1985年 | 13篇 |
| 1984年 | 13篇 |
| 1983年 | 14篇 |
| 1979年 | 15篇 |
| 1978年 | 11篇 |
| 1977年 | 14篇 |
| 1976年 | 12篇 |
| 1975年 | 10篇 |
| 1974年 | 12篇 |
| 1973年 | 12篇 |
| 1972年 | 15篇 |
| 1971年 | 15篇 |
| 1969年 | 10篇 |
| 1968年 | 13篇 |
| 1966年 | 10篇 |
排序方式： 共有2113条查询结果，搜索用时 15 毫秒
1.
Qiaojie Wang Karan Goswami Noam Shohat Arash Aalirezaie Jorge Manrique Javad Parvizi 《The Journal of arthroplasty》2019,34(5):947-953
Background
Whether prolonged operative time is an independent risk factor for subsequent surgical site infection (SSI) and periprosthetic joint infection (PJI) following total joint arthroplasty (TJA) remains a clinically significant and underexplored issue. The aim of this study is to investigate the association between operative time and the risk of subsequent SSI and PJI in patients undergoing primary TJA.Methods
We retrospectively reviewed 17,342 primary unilateral total knee arthroplasty and total hip arthroplasty performed at a single institution between 2005 and 2016, with a minimum follow-up of 1 year. A multivariate logistic regression model was conducted to identify the association between operative time and the development of SSI within 90 days and PJI within 1 year.Results
Overall, the incidence of 90-day SSI and 1-year PJI was 1.2% and 0.8%, respectively. Patients with an operative time of >90 minutes had a significantly higher incidence of SSI and PJI (2.1% and 1.4%, respectively) compared to cases lasting between 60 and 90 minutes (1.1% and 0.7%), and those lasting ≤60 minutes (0.9% and 0.7%, P < .01). In the multivariate model, the risk for infection increased by an odds ratio of 1.346 (95% confidential interval 1.114-1.627) for 90-day SSI and 1.253 (95% confidential interval 1.060-1.481) for 1-year PJI for each 20-minute increase in operative time.Conclusion
In patients undergoing primary TJA, each 20-minute increase in operative time was associated with nearly a 25% increased risk of subsequent PJI. We advocate that surgeons pay close attention to this underappreciated risk factor while maintaining safe operative practices, which minimize unnecessary steps and wasted time in the operating room. 相似文献2.
3.
4.
F. Jolly 《European archives of psychiatry and clinical neuroscience》1900,33(3):1020-1047
Ohne Zusammenfassung 相似文献
6.
7.
8.
9.
J R Smith C Wells M Jolly P Shah M Savage P Reginald V S Kitchen 《Sexually transmitted infections》1993,69(4):295-296
OBJECTIVE--It was hypothesised that the endometrium might act as a reservoir for candida, thus infecting the vagina as the endometrium is shed during menstruation. DESIGN--A prospective study of women with recurrent vulvo-vaginal candidiasis. The endometrium was sampled and cultured for candida species. SETTING--Central London STD clinic. SUBJECTS--26 women were enrolled, of whom 20 completed the study. RESULTS--One patient had a positive endometrial culture for candida species, the isolate being Candida krusei. CONCLUSIONS--The endometrium is not a common resevoir for candida species and therefore, infection at this site is an unlikely cause of recurrent vaginal candidiasis. 相似文献
10.