全文获取类型
| 收费全文 | 10050篇 |
| 免费 | 525篇 |
| 国内免费 | 54篇 |
专业分类
| 耳鼻咽喉 | 138篇 |
| 儿科学 | 213篇 |
| 妇产科学 | 211篇 |
| 基础医学 | 1261篇 |
| 口腔科学 | 1241篇 |
| 临床医学 | 613篇 |
| 内科学 | 2135篇 |
| 皮肤病学 | 224篇 |
| 神经病学 | 777篇 |
| 特种医学 | 193篇 |
| 外科学 | 1446篇 |
| 综合类 | 28篇 |
| 一般理论 | 5篇 |
| 预防医学 | 834篇 |
| 眼科学 | 260篇 |
| 药学 | 587篇 |
| 中国医学 | 69篇 |
| 肿瘤学 | 394篇 |
出版年
| 2024年 | 6篇 |
| 2023年 | 87篇 |
| 2022年 | 173篇 |
| 2021年 | 380篇 |
| 2020年 | 225篇 |
| 2019年 | 278篇 |
| 2018年 | 394篇 |
| 2017年 | 265篇 |
| 2016年 | 264篇 |
| 2015年 | 389篇 |
| 2014年 | 489篇 |
| 2013年 | 540篇 |
| 2012年 | 899篇 |
| 2011年 | 1007篇 |
| 2010年 | 500篇 |
| 2009年 | 423篇 |
| 2008年 | 723篇 |
| 2007年 | 721篇 |
| 2006年 | 628篇 |
| 2005年 | 527篇 |
| 2004年 | 488篇 |
| 2003年 | 402篇 |
| 2002年 | 358篇 |
| 2001年 | 40篇 |
| 2000年 | 35篇 |
| 1999年 | 45篇 |
| 1998年 | 43篇 |
| 1997年 | 25篇 |
| 1996年 | 26篇 |
| 1995年 | 7篇 |
| 1994年 | 19篇 |
| 1993年 | 15篇 |
| 1992年 | 15篇 |
| 1991年 | 17篇 |
| 1990年 | 9篇 |
| 1989年 | 13篇 |
| 1988年 | 19篇 |
| 1987年 | 13篇 |
| 1986年 | 9篇 |
| 1985年 | 10篇 |
| 1984年 | 7篇 |
| 1983年 | 6篇 |
| 1981年 | 5篇 |
| 1980年 | 8篇 |
| 1979年 | 8篇 |
| 1978年 | 5篇 |
| 1977年 | 7篇 |
| 1976年 | 5篇 |
| 1975年 | 6篇 |
| 1965年 | 6篇 |
排序方式： 共有10000条查询结果，搜索用时 31 毫秒
1.
2.
3.
4.
Del Lama Rafael Silva Candido Raquel Mariana Chiari-Correia Natália Santana Nogueira-Barbosa Marcello Henrique de Azevedo-Marques Paulo Mazzoncini Tinós Renato 《Journal of digital imaging》2022,35(3):446-458
Journal of Digital Imaging - Vertebral Compression Fracture (VCF) occurs when the vertebral body partially collapses under the action of compressive forces. Non-traumatic VCFs can be secondary to... 相似文献
5.
6.
7.
D. Sforza G. Iaria L. Petagna A. Parente A. Anselmo F. Sergi S. Marzio F. Corrado S. Telli T.M. Manzia G. Tisone 《Transplantation proceedings》2019,51(1):140-142
Background
One daily dose of tacrolimus (QDT) improves adherence in kidney transplant (KT) recipients. A switch from twice-daily tacrolimus (BDT) to QDT showed similar efficacy and safety.Methods
The aim of our study was to demonstrate the long-term efficacy and safety of switching from BDT to QDT in KT recipients. Preliminary results have already been published. Forty-one patients (34 men and 7 women), mean age at KT of 43.9 ± 12.7 years, underwent a 1:1 dose switch from BDT to QDT; the mean time from KT to switch was 36.6 ± 16.1 months. In our study population, 4 patients received a living donor KT and 2 received a second allograft.Results
The mean follow-up was 86.8 ± 13 months from the switch and 126.2 ± 22.3 months from KT. Graft and patient survival rates were 90.2% and 95.1%, respectively. All patients maintained stable renal function during follow-up. During the first 3 months after the switch we observed a significant decrease in tacrolimus blood level (P = .0001). No significant differences were observed regarding tacrolimus dose before and after QDT introduction (P = not significant [NS]). Fourteen patients who stopped steroids under BDT treatment and 16 patients who stopped steroids after the switch are currently steroid-free.Conclusion
Our study showed safety and efficacy in switching from BDT to QDT. After early (<1 year) dose adjustment, tacrolimus blood levels remained stable throughout follow-up. Moreover, QDT represented a valid alternative for patients showing steroid side effects. 相似文献8.
9.
10.
Andrea DiMartini Nancy Day Mary Amanda Dew Lubna Javed Mary Grace Fitzgerald Ashok Jain John J Fung Paulo Fontes 《Liver transplantation》2006,12(5):813-820
For patients who receive a liver transplant (LTX) for alcoholic liver disease (ALD), investigators are focusing beyond survival to determine specific alcohol use outcomes. Studies suggest the use of alcohol ranges from 8 to 22% for the first post-transplant year with cumulative rates reaching 30 to 40% by 5 years following transplantation. Yet while investigators are interested in determining specific rates of alcohol use and predictors of use, only three studies since 1990 have been prospective. In 1998, we began a prospective study of post-LTX alcohol consumption in ALD recipients using multiple repeated measures of alcohol use. After 5 years of follow-up, we found that 22% had used any alcohol by the first year and 42% had a drink by 5 years. By 5 years, 26% drank at a heavier use (binge) pattern and 20% drank in a frequent pattern. In a univariate model, predictors of alcohol use included pre-transplant length of sobriety, a diagnosis of alcohol dependence, a history of other substance use, and prior alcohol rehabilitation. 相似文献