全文获取类型
收费全文 | 12638篇 |
免费 | 1128篇 |
国内免费 | 266篇 |
专业分类
耳鼻咽喉 | 86篇 |
儿科学 | 615篇 |
妇产科学 | 319篇 |
基础医学 | 1787篇 |
口腔科学 | 288篇 |
临床医学 | 1373篇 |
内科学 | 2540篇 |
皮肤病学 | 169篇 |
神经病学 | 1176篇 |
特种医学 | 276篇 |
外科学 | 1943篇 |
综合类 | 222篇 |
一般理论 | 6篇 |
预防医学 | 1330篇 |
眼科学 | 198篇 |
药学 | 883篇 |
2篇 | |
中国医学 | 40篇 |
肿瘤学 | 779篇 |
出版年
2023年 | 112篇 |
2022年 | 86篇 |
2021年 | 391篇 |
2020年 | 237篇 |
2019年 | 325篇 |
2018年 | 378篇 |
2017年 | 267篇 |
2016年 | 241篇 |
2015年 | 269篇 |
2014年 | 365篇 |
2013年 | 555篇 |
2012年 | 785篇 |
2011年 | 788篇 |
2010年 | 415篇 |
2009年 | 403篇 |
2008年 | 687篇 |
2007年 | 737篇 |
2006年 | 665篇 |
2005年 | 626篇 |
2004年 | 625篇 |
2003年 | 548篇 |
2002年 | 520篇 |
2001年 | 312篇 |
2000年 | 281篇 |
1999年 | 233篇 |
1998年 | 135篇 |
1997年 | 118篇 |
1996年 | 94篇 |
1995年 | 96篇 |
1994年 | 81篇 |
1993年 | 80篇 |
1992年 | 192篇 |
1991年 | 181篇 |
1990年 | 161篇 |
1989年 | 159篇 |
1988年 | 150篇 |
1987年 | 152篇 |
1986年 | 113篇 |
1985年 | 101篇 |
1984年 | 98篇 |
1983年 | 102篇 |
1982年 | 63篇 |
1979年 | 82篇 |
1978年 | 67篇 |
1977年 | 57篇 |
1976年 | 50篇 |
1974年 | 52篇 |
1973年 | 59篇 |
1971年 | 54篇 |
1969年 | 56篇 |
排序方式: 共有10000条查询结果,搜索用时 203 毫秒
1.
Dongbing Lai Emma C. Johnson Sarah Colbert Gayathri Pandey Grace Chan Lance Bauer Meredith W. Francis Victor Hesselbrock Chella Kamarajan John Kramer Weipeng Kuang Sally Kuo Samuel Kuperman Yunlong Liu Vivia McCutcheon Zhiping Pang Martin H. Plawecki Marc Schuckit Jay Tischfield Leah Wetherill Yong Zang Howard J. Edenberg Bernice Porjesz Arpana Agrawal Tatiana Foroud 《Alcoholism, clinical and experimental research》2022,46(3):374-383
2.
3.
PNPLA3 gene polymorphism and response to lifestyle modification in patients with nonalcoholic fatty liver disease 下载免费PDF全文
4.
5.
Bernard Natukunda Grace Ndeezi Lay See Er Francis Bajunirwe Gayle Teramura Meghan Delaney 《ISBT科学丛刊》2019,14(4):366-373
6.
Anna Grace Tribble Phillip Summers Haiying Chen Sara A. Quandt 《Archives of environmental & occupational health》2016,71(6):309-316
The jobs of Latino manual laborers place their mental and physical health at risk. This study evaluates the associations among musculoskeletal pain, mental health, and work organization in Latino manual laborers. Farmworkers and nonfarmworkers (n = 189) in North Carolina were interviewed for self-reported musculoskeletal pain, depressive symptoms, stress, work safety climate, and precarious job status. More nonfarmworkers than farmworkers had neck and shoulder pain, but they did not differ in other areas of musculoskeletal pain. Depressive symptoms had a significant association with neck and shoulder pain (p < .05). Precariousness had a significant association with back pain (p < .05). Farmworker participants had H-2A visas and were afforded some protection compared to nonfarmworker manual workers. Research is needed to improve policy that relieves pain and improves mental health for all Latino manual workers. 相似文献
7.
8.
Susanne G Warner Adnan A Alseidi Johnny Hong Timothy M Pawlik Rebecca M Minter 《HPB : the official journal of the International Hepato Pancreato Biliary Association》2015,17(9):785-790
BackgroundHepatopancreatobiliary (HPB) surgery fellowship training has multiple paths. Prospective trainees and employers must understand the differences between training pathways. This study examines self-reported fellowship experiences and current scope of practice across three pathways.MethodsAn online survey was disseminated to 654 surgeons. These included active Americas Hepato-Pancreato-Biliary Association (AHPBA) members and recent graduates of HPB, transplant–HPB and HPB–heavy surgical oncology fellowships.ResultsA total of 416 (64%) surgeons responded. Most respondents were male (89%) and most were practising in an academic setting (83%). 290 (70%) respondents underwent formal fellowship training. Although fellowship experiences varied, current practice was largely similar. Minimally invasive surgery (MIS) and ultrasound were the most commonly identified areas of training deficiencies and were, respectively, cited as such by 47% and 34% of HPB-, 49% and 50% of transplant-, and 52% and 25% of surgical oncology-trained respondents. Non-HPB cases performed in current practice included gastrointestinal (GI) and general surgery cases (56% and 49%, respectively) for HPB-trained respondents, transplant and general surgery cases (87% and 21%, respectively) for transplant-trained respondents, and GI surgery and non-HPB surgical oncology cases (70% and 28%, respectively) for surgical oncology-trained respondents.ConclusionsFellowship training in HPB surgery varies by training pathway. Training in MIS and ultrasound is deficient in each pathway. The ultimate scope of non-transplant HPB practice appears similar across training pathways. Thus, training pathway choice is best guided by the training experience desired and non-HPB components of anticipated practice. 相似文献
9.
Nicole L. Stout DPT Justin C. Brown PhD Anna L. Schwartz PhD FNP Timothy F. Marshall PhD Anna M. Campbell PhD MBE Larissa Nekhlyudov MD MPH David S. Zucker MD PhD Karen M. Basen-Engquist PhD MPH Grace Campbell PhD MSW RN Jeffrey Meyerhardt MD MPH Andrea L. Cheville MD MSSE Kelley R. Covington MS Jennifer A. Ligibel MD Jonas M. Sokolof DO Kathryn H. Schmitz PhD MPH Catherine M. Alfano PhD 《Cancer》2020,126(12):2750-2758
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