全文获取类型
收费全文 | 54280篇 |
免费 | 7927篇 |
国内免费 | 1160篇 |
专业分类
耳鼻咽喉 | 973篇 |
儿科学 | 1015篇 |
妇产科学 | 1062篇 |
基础医学 | 5444篇 |
口腔科学 | 3139篇 |
临床医学 | 7558篇 |
内科学 | 10412篇 |
皮肤病学 | 1253篇 |
神经病学 | 4169篇 |
特种医学 | 2574篇 |
外国民族医学 | 5篇 |
外科学 | 7522篇 |
综合类 | 2554篇 |
现状与发展 | 19篇 |
一般理论 | 9篇 |
预防医学 | 4514篇 |
眼科学 | 1172篇 |
药学 | 3636篇 |
15篇 | |
中国医学 | 1070篇 |
肿瘤学 | 5252篇 |
出版年
2024年 | 221篇 |
2023年 | 1494篇 |
2022年 | 1443篇 |
2021年 | 2132篇 |
2020年 | 2055篇 |
2019年 | 1415篇 |
2018年 | 2379篇 |
2017年 | 2121篇 |
2016年 | 2568篇 |
2015年 | 3063篇 |
2014年 | 3768篇 |
2013年 | 4331篇 |
2012年 | 3578篇 |
2011年 | 3635篇 |
2010年 | 3039篇 |
2009年 | 3348篇 |
2008年 | 2716篇 |
2007年 | 2356篇 |
2006年 | 2306篇 |
2005年 | 2021篇 |
2004年 | 1552篇 |
2003年 | 1335篇 |
2002年 | 1117篇 |
2001年 | 1077篇 |
2000年 | 1002篇 |
1999年 | 956篇 |
1998年 | 761篇 |
1997年 | 702篇 |
1996年 | 699篇 |
1995年 | 547篇 |
1994年 | 436篇 |
1993年 | 362篇 |
1992年 | 334篇 |
1991年 | 323篇 |
1990年 | 275篇 |
1989年 | 246篇 |
1988年 | 210篇 |
1987年 | 201篇 |
1986年 | 170篇 |
1985年 | 140篇 |
1984年 | 109篇 |
1983年 | 126篇 |
1982年 | 112篇 |
1981年 | 88篇 |
1980年 | 65篇 |
1979年 | 63篇 |
1978年 | 50篇 |
1977年 | 59篇 |
1976年 | 44篇 |
1974年 | 41篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
31.
Andrew R. Hoellein MD Christopher A. Feddock MD Charles H. Griffith III MD MSPH John F. Wilson PhD Donald R. Barnett MD MSPH Pat F. Bass III MD MS T. Shawn Caudill MD MSPH 《Journal of general internal medicine》2004,19(5P2):562-565
Due to recent public debate and newly imposed resident work hour restrictions, we decided to investigate the relationship of resident call status to their ambulatory patients' satisfaction. Resident continuity clinic patients were asked to rate their level of satisfaction on a 10-point Likert-type scale. Using multiple regression approaches, these data were then assessed as a function of resident call status. We found that in 646 patient encounters, patient satisfaction scores were significantly less when the resident was postcall, 8.99 ± 1.8, than when not postcall, 9.31 ± 1.3. We herein discuss etiologies and implications of these findings for both patient care and medical education. 相似文献
32.
33.
34.
35.
36.
37.
Gerald S. Lipshutz Harish Mahanty Sandy Feng Ryutaro Hirose Peter G. Stock Sang-Mo Kang rew M. Posselt Chris E. Freise 《American journal of transplantation》2005,5(2):366-373
With the introduction of more potent immunosuppressive agents, rejection has decreased in simultaneous pancreas/kidney transplant (SPK) recipients. However, as a consequence, opportunistic infections have increased. The purpose of this report is to outline the course of SPK patients who developed polyomavirus-associated nephropathy (PVAN). A retrospective review of 146 consecutive SPK recipients from January 1, 1996 to December 31, 2002 was performed. Immunosuppression, rejection and development of PVAN were reviewed. Nine patients were identified. All received induction with either OKT3 or thymoglobulin. Immunosuppression included tacrolimus/cyclosporine, MMF/azathioprine and sirolimus/prednisone. Two patients were treated for kidney rejection prior to the diagnosis of PVAN. Time to diagnosis was an average of 359.3 days post-transplantation. Immunosuppression was decreased but five ultimately lost function. However, none developed pancreatic abnormalities as demonstrated by normal glucose and amylase. Two underwent renal retransplantation after PVAN diagnosis and both have normal kidney function. PVAN was the leading cause of renal loss in SPK patients in the first 2 years after transplantation and is a serious concern for SPK recipients. The pancreas, however, is spared from evidence of infection, and no pancreatic rejection occurred when immunosuppression was decreased. 相似文献
38.
39.
40.
New features of PowerPoint 2002 总被引:1,自引:0,他引:1