全文获取类型
收费全文 | 3133篇 |
免费 | 107篇 |
国内免费 | 50篇 |
专业分类
耳鼻咽喉 | 5篇 |
儿科学 | 164篇 |
妇产科学 | 101篇 |
基础医学 | 341篇 |
口腔科学 | 8篇 |
临床医学 | 216篇 |
内科学 | 401篇 |
皮肤病学 | 7篇 |
神经病学 | 187篇 |
特种医学 | 58篇 |
外科学 | 553篇 |
综合类 | 205篇 |
预防医学 | 692篇 |
眼科学 | 5篇 |
药学 | 232篇 |
中国医学 | 48篇 |
肿瘤学 | 67篇 |
出版年
2023年 | 71篇 |
2022年 | 146篇 |
2021年 | 214篇 |
2020年 | 157篇 |
2019年 | 150篇 |
2018年 | 134篇 |
2017年 | 96篇 |
2016年 | 121篇 |
2015年 | 75篇 |
2014年 | 247篇 |
2013年 | 224篇 |
2012年 | 132篇 |
2011年 | 197篇 |
2010年 | 131篇 |
2009年 | 154篇 |
2008年 | 185篇 |
2007年 | 148篇 |
2006年 | 113篇 |
2005年 | 87篇 |
2004年 | 66篇 |
2003年 | 50篇 |
2002年 | 44篇 |
2001年 | 35篇 |
2000年 | 38篇 |
1999年 | 21篇 |
1998年 | 21篇 |
1997年 | 20篇 |
1996年 | 12篇 |
1995年 | 21篇 |
1994年 | 10篇 |
1993年 | 7篇 |
1992年 | 12篇 |
1991年 | 9篇 |
1990年 | 7篇 |
1989年 | 5篇 |
1988年 | 5篇 |
1986年 | 6篇 |
1985年 | 13篇 |
1984年 | 12篇 |
1983年 | 6篇 |
1982年 | 6篇 |
1981年 | 7篇 |
1980年 | 5篇 |
1979年 | 10篇 |
1977年 | 6篇 |
1976年 | 6篇 |
1975年 | 7篇 |
1974年 | 6篇 |
1973年 | 10篇 |
1972年 | 6篇 |
排序方式: 共有3290条查询结果,搜索用时 15 毫秒
1.
2.
《Surgery for obesity and related diseases》2019,15(7):1219-1224
Endoscopic gastroplasty (EG) has been used in clinical practice to treat obesity. This systematic review has the objective of assessing if there is an acceptable level of scientific evidence on the safety and effectiveness of EG. A thorough search strategy was used up to October 2018, including the 2 most common techniques: endoscopic suturing and the primary obesity surgery endolumenal procedure. The quality of the studies was evaluated through the Joanna Briggs Institute Critical Appraisal tools for use in Systematic Reviews—“Checklist for Case Series”—and summarized using the Grading of Recommendations, Assessment, Development, and Evaluations (GRADE) approach. Only 1 randomized controlled trial (moderate GRADE evidence) was found, and the remaining were case reports or small case series (very low GRADE evidence). The literature has low scientific quality. All studies, with 1 exception, are small case series with short follow-up. One of the randomized controlled trials did not meet the primary endpoint for weight loss in both groups (EG × sham) after 1-year follow-up. The case series reported from 16% to 19% total weight loss, but few had more than 6 months of follow-up. Serious adverse events ranged from 2% to 10%. Based on current literature, there is not enough quality scientific evidence regarding long-term weight loss and the procedure’s safety to recommend the use of EG in current clinical practice. 相似文献
3.
4.
5.
《Surgery for obesity and related diseases》2020,16(8):1060-1066
BackgroundSingle-anastomosis duodeno-ileal bypass (SADI) and the one-anastomosis gastric bypass (OAGB) are 2 revisional procedures to address the problem of weight recidivism after laparoscopic sleeve gastrectomy (LSG).ObjectivesTo evaluate the efficacy and safety of SADI and OAGB as revisional bariatric surgery (RBS) in initially super-obese patients (body mass index [BMI] >50 kg/m2).SettingAcademic hospital, bariatric center of excellence, Germany.MethodsObservational study of outcomes in 84 initially super-obese patients who had undergone RBS after LSG (SADI n = 42, OAGB n = 42) between July 2013 and April 2018. Follow-up examinations were performed at 1, 6, 12, 24, and 36 months after RBS. The variables analyzed included time between LSG and RBS, BMI, excess weight loss, total weight loss, operation time, and complications.ResultsThe time interval between LSG and RBS was 45.5 ± 22.8 and 43.5 ± 24.2 months for SADI and OAGB, respectively. At the time of RBS, the mean BMI was 42.8 ± 7.9 kg/m2 for SADI and 43.4 ± 9.2 kg/m2 for OAGB. The follow-up examinations rates (%) after SADI were 97.6, 92.8, 90.5, 78.6, 57.1, and 100, 97.6, 95.2, 85.7, and 59.5 after OAGB. The BMI at the follow-up examinations were 39.1 ± 7.2, 34.2 ± 6.9, 31.2 ± 5.8, 30.2 ± 5.3, 29.3 ± 5.1 for SADI, and 39.5 ± 8.1, 36.6 ± 7.4, 34.7 ± 7.9, 32.9 ± 6.3, and 31.6 ± 5.9 for OAGB. The mean operating times for SADI and OAGB were 138 ± 40 and 123 ± 39 minutes, respectively. Three patients in the SADI group and 1 patient in the OAGB group developed a major complication within the first 30 postoperative days.ConclusionSADI and OAGB were effective second-step procedures for further weight reduction after LSG in initially super-obese patients after short to medium follow-up. There was a trend toward higher weight loss for SADI though this did not reach statistical significance. Substantial differences concerning surgery time and complications between the 2 procedures were not observed. 相似文献
6.
7.
8.
9.
10.