全文获取类型
收费全文 | 1300篇 |
免费 | 63篇 |
国内免费 | 40篇 |
专业分类
耳鼻咽喉 | 6篇 |
儿科学 | 40篇 |
妇产科学 | 9篇 |
基础医学 | 130篇 |
口腔科学 | 19篇 |
临床医学 | 127篇 |
内科学 | 374篇 |
皮肤病学 | 11篇 |
神经病学 | 70篇 |
特种医学 | 179篇 |
外科学 | 167篇 |
综合类 | 15篇 |
预防医学 | 53篇 |
眼科学 | 7篇 |
药学 | 64篇 |
肿瘤学 | 132篇 |
出版年
2023年 | 4篇 |
2022年 | 11篇 |
2021年 | 33篇 |
2020年 | 15篇 |
2019年 | 19篇 |
2018年 | 33篇 |
2017年 | 19篇 |
2016年 | 17篇 |
2015年 | 23篇 |
2014年 | 37篇 |
2013年 | 37篇 |
2012年 | 45篇 |
2011年 | 59篇 |
2010年 | 35篇 |
2009年 | 50篇 |
2008年 | 53篇 |
2007年 | 69篇 |
2006年 | 51篇 |
2005年 | 41篇 |
2004年 | 46篇 |
2003年 | 43篇 |
2002年 | 44篇 |
2001年 | 30篇 |
2000年 | 39篇 |
1999年 | 41篇 |
1998年 | 57篇 |
1997年 | 48篇 |
1996年 | 43篇 |
1995年 | 32篇 |
1994年 | 25篇 |
1993年 | 36篇 |
1992年 | 12篇 |
1991年 | 16篇 |
1990年 | 11篇 |
1989年 | 31篇 |
1988年 | 26篇 |
1987年 | 29篇 |
1986年 | 15篇 |
1985年 | 19篇 |
1984年 | 14篇 |
1983年 | 15篇 |
1982年 | 14篇 |
1981年 | 16篇 |
1980年 | 18篇 |
1979年 | 2篇 |
1978年 | 8篇 |
1977年 | 7篇 |
1976年 | 8篇 |
1975年 | 4篇 |
1970年 | 1篇 |
排序方式: 共有1403条查询结果,搜索用时 15 毫秒
1.
Jér?me Dumortier Marie-Claude Gagnieu Janine Salandre Olivier Guillaud Philipe Guillem Mustapha Adham Olivier Boillot 《Liver transplantation》2006,12(9):1342-1346
Gastrointestinal (GI) disorders are one of the main adverse events in patients treated by mycophenolic acid (MPA). The aim of this prospective study was to evaluate the effect of conversion from mycophenolate mofetil (MMF) to enteric-coated mycophenolate sodium (EC-MPS) in liver transplant patients presenting GI side-effects Since January 2003, stable liver transplant patients receiving MMF and presenting GI disorders, without evidence of other origin than MMF were enrolled. Conversion was performed without a washout period at an equimolar daily dosage. Thirty-six patients were included after a median delay of 45 months after liver transplantation (LT) (16 women and 20 men, median age of 47 years). Diarrhoea was the main clinical symptom (n = 28, 77.7%). At the time of inclusion, patients were treated with MMF since 18 months (range 3-28) and GI disorders were known for 9 months (range 3-12). After a median follow-up of 12 months after conversion, GI disorders were resolved in 20 patients (55%), improved in 6 patients (17%) and not modified or worsened in 10 patients (28%). Our results strongly suggest that conversion from MMF to EC-MPS in liver transplant patients can improve gastrointestinal disorders in a majority of the patients, and therefore might be considered as the best therapeutic option. 相似文献
2.
3.
4.
5.
Normal and diseased isolated lungs: high-resolution CT 总被引:8,自引:0,他引:8
6.
7.
Sergi Sastre Guillem Bori Sebastian Garcia Andreu Combalia 《European journal of orthopaedic surgery & traumatology : orthopedie traumatologie》2005,15(1):63-65
A rare case of an infected chronic hematoma in a patient with immunodeficiency syndrome mimicking a soft tissue neoplasm is presented. There are few reported cases of hematogenous infection of chronic hematomas, which be difficult to differentiate from soft tissue neoplasms. 相似文献
8.
9.
The adhesion of hematopoietic progenitor cells to bone marrow stromal cells is critical to hematopoiesis and involves multiple effector molecules. Stromal cell molecules that participate in this interaction were sought by analyzing the detergent-soluble membrane proteins of GBI/6 stromal cells that could be adsorbed by intact FDCP-1 progenitor cells. A single-chain protein from GBI/6 cells having an apparent molecular weight of 37 Kd was selectively adsorbed by FDCP-1 cells. This protein, designated p37, could be surface-radiolabeled and thus appeared to be exposed on the cell membrane. An apparently identical 37- Kd protein was expressed by three stromal cell lines, by Swiss 3T3 fibroblastic cells, and by FDCP-1 and FDCP-2 progenitor cells. p37 was selectively adsorbed from membrane lysates by a variety of murine hematopoietic cells, including erythrocytes, but not by human erythrocytes. Binding of p37 to cells was calcium-dependent, and was not affected by inhibitors of the hematopoietic homing receptor or the cell-binding or heparin-binding functions of fibronectin. It is proposed that p37 may be a novel adhesive molecule expressed on the surface of a variety of hematopoietic cells that could participate in both homotypic and heterotypic interactions of stromal and progenitor cells. 相似文献
10.