全文获取类型
收费全文 | 4056篇 |
免费 | 301篇 |
国内免费 | 18篇 |
专业分类
耳鼻咽喉 | 78篇 |
儿科学 | 90篇 |
妇产科学 | 43篇 |
基础医学 | 532篇 |
口腔科学 | 74篇 |
临床医学 | 375篇 |
内科学 | 777篇 |
皮肤病学 | 56篇 |
神经病学 | 400篇 |
特种医学 | 268篇 |
外科学 | 718篇 |
综合类 | 34篇 |
一般理论 | 4篇 |
预防医学 | 291篇 |
眼科学 | 89篇 |
药学 | 202篇 |
中国医学 | 3篇 |
肿瘤学 | 341篇 |
出版年
2023年 | 68篇 |
2022年 | 127篇 |
2021年 | 195篇 |
2020年 | 123篇 |
2019年 | 164篇 |
2018年 | 165篇 |
2017年 | 128篇 |
2016年 | 130篇 |
2015年 | 198篇 |
2014年 | 179篇 |
2013年 | 195篇 |
2012年 | 299篇 |
2011年 | 261篇 |
2010年 | 149篇 |
2009年 | 118篇 |
2008年 | 189篇 |
2007年 | 204篇 |
2006年 | 155篇 |
2005年 | 161篇 |
2004年 | 160篇 |
2003年 | 95篇 |
2002年 | 104篇 |
2001年 | 48篇 |
2000年 | 52篇 |
1999年 | 51篇 |
1998年 | 24篇 |
1997年 | 25篇 |
1996年 | 13篇 |
1995年 | 14篇 |
1994年 | 18篇 |
1992年 | 33篇 |
1991年 | 42篇 |
1990年 | 32篇 |
1989年 | 35篇 |
1988年 | 32篇 |
1987年 | 30篇 |
1986年 | 28篇 |
1985年 | 24篇 |
1984年 | 16篇 |
1983年 | 24篇 |
1982年 | 12篇 |
1979年 | 21篇 |
1977年 | 12篇 |
1975年 | 13篇 |
1973年 | 18篇 |
1972年 | 11篇 |
1971年 | 13篇 |
1970年 | 11篇 |
1969年 | 12篇 |
1968年 | 11篇 |
排序方式: 共有4375条查询结果,搜索用时 0 毫秒
1.
Michels Guido Horn Rudolf Helfen Andreas Hagendorff Andreas Jung Christian Hoffmann Beatrice Jaspers Natalie Kinkel Horst Greim Clemens-Alexander Knebel Fabian Bauersachs Johann Busch Hans-Jörg Kiefl Daniel Spiel Alexander O. Marx Gernot Dietrich Christoph F. 《Der Anaesthesist》2022,71(4):307-310
Die Anaesthesiologie - 相似文献
2.
3.
4.
5.
Fabian M. Laage Gaupp Nadia Solomon Ivan Rukundo Azza A. Naif Erick M. Mbuguje Anish Gonchigar Minzhi Xing John D. Prologo Douglas D. Silin Frank J. Minja 《Journal of vascular and interventional radiology : JVIR》2019,30(12):2036-2040
Despite a population of nearly 60 million, there is currently not a single interventional radiologist in Tanzania. Based on an Interventional Radiology (IR) Readiness Assessment, the key obstacles to establishing IR in Tanzania are the lack of training opportunities and limited availability of disposable equipment. An IR training program was designed and initiated, which relies on US-based volunteer teams of IR physicians, nurses, and technologists to locally train radiology residents, nurses, and technologists. Preliminary results support this strategy for addressing the lack of training opportunities and provide a model for introducing IR to other resource-limited settings. 相似文献
6.
7.
8.
Sandra Fabian Heike Hesse Roland Grassme Ingo Bradl Annette Bernsdorf 《Pathophysiology》2005,12(4):281-287
The results of most reported studies show differences between the muscular activity of low back pain patients and healthy subjects, but the focus has usually been on trunk muscles only, and they have not involved work-related tests or exercises. The reintegration of chronic low back pain patients to job market is a common problem. Therefore assessment systems like the functional capacity evaluation (FCE) according to Isernhagen [S.J. Isernhagen, Work Injury: Management and Prevention, Aspen Publishers Inc., Gaithersburg, MD, 1988] are often used tools to determine the physical abilities and deficits of long-time incapacitated persons. The aim of the present study was to compare the healthy persons and chronic low back pain patients in performing a FCE-test and to analyse their muscular activation and motion patterns. The results indicate differences in the activation patterns of the groups in the test task “floor to waist lift” common in many occupations. 相似文献
9.
10.
T W Mattox R O Brown B A Boucher E A Buonpane T C Fabian R W Luther 《JPEN. Journal of parenteral and enteral nutrition》1988,12(6):592-596
The purpose of this study was to evaluate the use of serum fibronectin and serum somatomedin-C as nutritional markers during enteral nutrition support (ENS) of critically ill, traumatized patients using an enteral product containing high concentrations of branched-chain amino acids. Twelve critically injured patients received a standard enteral formula with 30 g of a 44% branched-chain amino acid supplement added to each liter of formula. Fibronectin concentration, somatomedin-C concentration, and nitrogen balance were measured on study days 1, 4, 7, 14, 21, 28 or until adequate oral intake began. Both fibronectin and somatomedin-C concentrations increased significantly from baseline by day 7 of ENS. Nitrogen balance increased significantly from baseline by day 4. On days 14 and 21, only somatomedin-C and nitrogen balance increased significantly from baseline. Nitrogen balance was significantly correlated with somatomedin-C concentration (r = 0.53, p less than 0.01), cumulative caloric intake (r = 0.68, p less than 0.01), and cumulative nitrogen intake (r = 0.72, p less than 0.01). The results of this study suggest that serum somatomedin-C is useful and serum fibronectin has potential in monitoring nutrition support response in critically ill, traumatized patients. 相似文献