全文获取类型
收费全文 | 2708篇 |
免费 | 174篇 |
国内免费 | 9篇 |
专业分类
耳鼻咽喉 | 33篇 |
儿科学 | 123篇 |
妇产科学 | 56篇 |
基础医学 | 344篇 |
口腔科学 | 57篇 |
临床医学 | 273篇 |
内科学 | 622篇 |
皮肤病学 | 86篇 |
神经病学 | 308篇 |
特种医学 | 143篇 |
外科学 | 390篇 |
综合类 | 21篇 |
预防医学 | 164篇 |
眼科学 | 21篇 |
药学 | 115篇 |
中国医学 | 8篇 |
肿瘤学 | 127篇 |
出版年
2023年 | 16篇 |
2022年 | 43篇 |
2021年 | 58篇 |
2020年 | 35篇 |
2019年 | 65篇 |
2018年 | 63篇 |
2017年 | 56篇 |
2016年 | 59篇 |
2015年 | 75篇 |
2014年 | 83篇 |
2013年 | 137篇 |
2012年 | 168篇 |
2011年 | 129篇 |
2010年 | 104篇 |
2009年 | 89篇 |
2008年 | 114篇 |
2007年 | 118篇 |
2006年 | 112篇 |
2005年 | 108篇 |
2004年 | 125篇 |
2003年 | 97篇 |
2002年 | 86篇 |
2001年 | 66篇 |
2000年 | 64篇 |
1999年 | 52篇 |
1998年 | 39篇 |
1997年 | 49篇 |
1996年 | 42篇 |
1995年 | 35篇 |
1994年 | 38篇 |
1993年 | 42篇 |
1992年 | 48篇 |
1991年 | 40篇 |
1990年 | 44篇 |
1989年 | 49篇 |
1988年 | 54篇 |
1987年 | 46篇 |
1986年 | 30篇 |
1985年 | 35篇 |
1984年 | 18篇 |
1983年 | 20篇 |
1982年 | 18篇 |
1981年 | 23篇 |
1980年 | 9篇 |
1979年 | 13篇 |
1978年 | 14篇 |
1977年 | 12篇 |
1976年 | 16篇 |
1975年 | 7篇 |
1973年 | 5篇 |
排序方式: 共有2891条查询结果,搜索用时 31 毫秒
1.
Prevention Science - This study aimed to evaluate the effectiveness of the drug and violence resistance educational program (PROERD) on short-term secondary outcomes, such as intentions to use... 相似文献
2.
D Gröne† R Treudler† EM de Villiers‡ R Husak† CE Orfanos† ChC Zouboulis†§ 《Journal of the European Academy of Dermatology and Venereology》2006,20(2):202-205
Cidofovir is an acyclic nucleoside phosphonate with broad-spectrum activity against DNA viruses, including human papilloma virus (HPV). However, data on the efficacy of cidofovir in an immunosuppressive setting remain contradictory. We report for the first time on the promotion of the healing of recalcitrant warts in a patient with myelodysplastic syndrome with intravenous cidofovir treatment. 相似文献
3.
4.
R E Zuniga W Rappaport J Valente R Allen I Lesnick E Kligman 《American family physician》1991,44(4):1285-1291
Preoperative screening for potential cardiac complications is crucial in making rational decisions about surgery. A number of classification schemes are available to aid the primary care physician in assessing a patient's perioperative cardiac risk. In general, these schemes enable the physician to place patients in low-risk, moderate-risk and high-risk categories. Patients at low risk can often be safely referred for surgery with minimal preoperative evaluation, while those at potentially high risk frequently need further assessment and medical or surgical treatment of cardiac disease prior to surgery. The classification schemes are most accurate in identifying patients at high risk for perioperative cardiac complications. However, patients with silent underlying cardiac disease are often underclassified with respect to potential risk. For those patients, accurate prediction of perioperative cardiac complications can be challenging. 相似文献
5.
Stefano Di Domenico Giulio Bovio Maximiliano Gelli Ferruccio Ravazzoni Enzo Andorno Damiano Cottalasso Umberto Valente 《BMC surgery》2007,7(1):18
Background
Liver transplantation in presence of diffuse portal vein thrombosis is possible by using caval blood as portal inflow, through cavo-portal transposition. However, clinical results are heterogeneous and experimental studies are needed, but similar hemodynamic conditions are difficult to obtain, especially in small animals. Herein we describe a new simple model of cavo-portal transposition in rat. 相似文献6.
Isolated pure dislocations of the fifth carpo-metacarpal joint are extremely rare injuries. The dorsal form was described
in mere 12 cases. The diagnosis can be easily missed. The lesion is also often overlooked in the routine diagnostic X-ray.
Lateral and oblique views are important for the recognition of the true extent of the lesion. Treatment of these injures is
still controversial and both closed reduction with percutaneous pinning or open reduction with internal fixation are advocated.
The goal of treatment is early reduction and fixation of the metacarpal. Early diagnosis is the key to success. The aim of
this paper is to review literature and present two new cases. 相似文献
7.
8.
Enza-Maria Valente Anjum Misbahuddin Francesco Brancati Mark R Placzek Barbara Garavaglia Sergio Salvi Andrea Nemeth Charles Shaw-Smith Nardo Nardocci Anna-Rita Bentivoglio Alfredo Berardelli Roberto Eleopra Bruno Dallapiccola Thomas T Warner 《Movement disorders》2003,18(9):1047-1051
The epsilon-sarcoglycan gene (SGCE) on human chromosome 7q21 has been reported to be a major locus for inherited myoclonus-dystonia. Linkage to the SGCE locus has been detected in the majority of families tested, and mutations in the coding region have been found recently in families with autosomal dominant myoclonus-dystonia. To evaluate the relevance of SGCE in myoclonus-dystonia, we sequenced the entire coding region of the epsilon-sarcoglycan gene in 16 patients with either sporadic or familial myoclonus-dystonia. No mutations were found. This study suggests that epsilon-sarcoglycan does not play an important role in sporadic myoclonus-dystonia and supports genetic heterogeneity in familial cases. 相似文献
9.
10.
Continuous ambulatory peritoneal dialysis associated with peritonitis in older patients 总被引:1,自引:0,他引:1
Our recent experience with peritonitis in patients over the age of 55 years undergoing continuous ambulatory peritoneal dialysis between 1979 and 1989 is reviewed. Thirty-seven patients in this age group underwent Tenckhoff catheter insertion. Severe catheter-related peritonitis occurred at a rate of 1.41 episodes per patient per year. Overall, there were 61 episodes of peritonitis in 31 patients, with an overall mortality rate of 7%. When systemic signs of sepsis were present, this rate rose to 25%. All deaths were associated with fungal, pseudomonal, or polymicrobial infections. Management of these infections may require aggressive measures including repeated laparotomy for control of sepsis. 相似文献