收费全文 | 3734篇 |
免费 | 200篇 |
国内免费 | 16篇 |
耳鼻咽喉 | 24篇 |
儿科学 | 95篇 |
妇产科学 | 52篇 |
基础医学 | 345篇 |
口腔科学 | 82篇 |
临床医学 | 273篇 |
内科学 | 849篇 |
皮肤病学 | 33篇 |
神经病学 | 409篇 |
特种医学 | 99篇 |
外科学 | 685篇 |
综合类 | 66篇 |
一般理论 | 3篇 |
预防医学 | 146篇 |
眼科学 | 201篇 |
药学 | 366篇 |
中国医学 | 15篇 |
肿瘤学 | 207篇 |
2023年 | 28篇 |
2022年 | 63篇 |
2021年 | 173篇 |
2020年 | 96篇 |
2019年 | 119篇 |
2018年 | 119篇 |
2017年 | 95篇 |
2016年 | 98篇 |
2015年 | 120篇 |
2014年 | 177篇 |
2013年 | 225篇 |
2012年 | 356篇 |
2011年 | 379篇 |
2010年 | 179篇 |
2009年 | 160篇 |
2008年 | 223篇 |
2007年 | 253篇 |
2006年 | 224篇 |
2005年 | 151篇 |
2004年 | 120篇 |
2003年 | 108篇 |
2002年 | 80篇 |
2001年 | 51篇 |
2000年 | 49篇 |
1999年 | 36篇 |
1998年 | 15篇 |
1997年 | 12篇 |
1996年 | 7篇 |
1995年 | 7篇 |
1994年 | 6篇 |
1993年 | 8篇 |
1992年 | 24篇 |
1991年 | 13篇 |
1990年 | 12篇 |
1989年 | 15篇 |
1988年 | 13篇 |
1987年 | 22篇 |
1986年 | 15篇 |
1985年 | 10篇 |
1984年 | 10篇 |
1983年 | 4篇 |
1982年 | 5篇 |
1981年 | 4篇 |
1979年 | 7篇 |
1975年 | 8篇 |
1974年 | 8篇 |
1973年 | 3篇 |
1971年 | 9篇 |
1969年 | 6篇 |
1966年 | 6篇 |
Robotic approaches have been steadily replacing laparoscopic approaches in metabolic and bariatric surgeries (MBS); however, their superiority has not been rigorously evaluated. The main goal of the study was to evaluate the 5-year utilization trends of robotic MBS and to compare to laparoscopic outcomes.
MethodsRetrospective analysis of 2015–2019 MBSAQIP data. Kruskal-Wallis test/Wilcoxon and Fisher’s exact/chi-square were used to compare continuous and categorical variables, respectively. Generalized linear models were used to compare surgery outcomes.
ResultsThe use of robotic MBS increased from 6.2% in 2015 to 13.5% in 2019 (N= 775,258). Robotic MBS patients had significantly higher age, BMI, and likelihood of 12 diseases compared to laparoscopic patients. After adjustment, robotic MBS patients showed higher 30-day interventions and 30-day readmissions alongside longer surgery time (26–38 min).
ConclusionRobotic MBS shows higher intervention and readmission even after controlling for cofounding variables.
Graphical AbstractMethods: The electroencephalogram was recorded during cooling and rewarming in 14 patients undergoing hypothermic cardiopulmonary bypass and circulatory arrest. Data were digitized at 128 Hz, and approximate entropy was calculated from 8-s intervals. The dose-response relationship was derived using sigmoidal curve-fitting techniques, and statistical analysis was performed using analysis of variance techniques.
Results: The approximate entropy of the electroencephalogram changed in a sigmoidal fashion during cooling and rewarming. The midpoint of the curve averaged 24.7[degrees]C during cooling and 28[degrees]C (not significant) during rewarming. The temperature corresponding to 5% entropy (T0.05) was 18.7[degrees]C. The temperature corresponding to 95% entropy (T0.95) was 31.3[degrees]C during cooling and 38.2[degrees]C during rewarming (P < 0.02). 相似文献