全文获取类型
收费全文 | 300篇 |
免费 | 9篇 |
国内免费 | 6篇 |
专业分类
耳鼻咽喉 | 3篇 |
儿科学 | 16篇 |
妇产科学 | 4篇 |
基础医学 | 23篇 |
口腔科学 | 32篇 |
临床医学 | 38篇 |
内科学 | 60篇 |
神经病学 | 4篇 |
特种医学 | 6篇 |
外科学 | 75篇 |
综合类 | 2篇 |
预防医学 | 2篇 |
眼科学 | 12篇 |
药学 | 15篇 |
肿瘤学 | 23篇 |
出版年
2023年 | 2篇 |
2021年 | 2篇 |
2020年 | 4篇 |
2019年 | 2篇 |
2018年 | 5篇 |
2017年 | 2篇 |
2016年 | 4篇 |
2015年 | 16篇 |
2014年 | 18篇 |
2013年 | 25篇 |
2012年 | 30篇 |
2011年 | 26篇 |
2010年 | 19篇 |
2009年 | 20篇 |
2008年 | 34篇 |
2007年 | 19篇 |
2006年 | 23篇 |
2005年 | 18篇 |
2004年 | 11篇 |
2003年 | 11篇 |
2002年 | 5篇 |
2001年 | 3篇 |
2000年 | 3篇 |
1999年 | 2篇 |
1994年 | 2篇 |
1992年 | 1篇 |
1991年 | 1篇 |
1989年 | 1篇 |
1988年 | 1篇 |
1987年 | 1篇 |
1973年 | 1篇 |
1970年 | 1篇 |
1969年 | 1篇 |
1968年 | 1篇 |
排序方式: 共有315条查询结果,搜索用时 15 毫秒
1.
2.
C Demiroglu A Ozder T Altug B Orbay S Satar-Yíldírím A Bilir G Deniz T Erbengi S Büyükdevrim 《Angiology》1991,42(4):323-330
The effects of n-3 fatty-acid supplementation on serum lipids, platelet aggregation, and the development of atherosclerotic lesions were studied in the cholesterol-fed rabbit. Serum total cholesterol and LDL cholesterol values were significantly reduced in comparison with those of the nonsupplemented cholesterol-fed group (p less than 0.005, p less than 0.0025, respectively), though still higher than those of the control group (p less than 0.0025, p less than 0.0125 respectively). Platelet aggregation was reduced below that of the cholesterol-fed and the control levels (p less than 0.0005, p less than 0.0025, respectively). The endothelial injury encountered in cholesterol-fed rabbits was inhibited in the supplemented group. It is concluded that n-3 fatty acids suppress atherogenesis in this animal model by interfering with platelet aggregation and lipid metabolism. 相似文献
3.
4.
Altug Cetinkaya 《Saudi Journal of Ophthalmology》2012,26(4):357-364
Imaging is a beneficial aid to the oculoplastic surgeon especially in orbital and lacrimal disorders when the pathology is not visible from outside. It is a powerful tool that may be benefited in not only diagnosis but also management and follow-up. The most common imaging modalities required are CT and MRI, with CT being more frequently ordered by oculoplastic surgeons. Improvements in technology enabled the acquisition times to shorten incredibly. Radiologists can now obtain images with superb resolution, and isolate the site and tissue of interest from other structures with special techniques. Better contrast agents and 3D imaging capabilities make complicated cases easier to identify. Color Doppler imaging is becoming more popular both for research and clinical purposes. Magnetic resonance angiography (MRA) added so much to the vascular system imaging recently. Although angiography is still the gold standard, new software and techniques rendered MRA as valuable as angiography in most circumstances. Stereotactic navigation, although in use for a long time, recently became the focus of interest for the oculoplastic surgeon especially in orbital decompressions. Improvements in radiology and nuclear medicine techniques of lacrimal drainage system imaging provided more detailed analysis of the system. 相似文献
5.
6.
7.
8.
The aim of this study was to evaluate the quality of B cell responses in patients with Inflammatory Bowel Disease (IBD) and healthy individuals of different ages, vaccinated with the pandemic (p)2009 influenza vaccine. The in vivo response was measured by the hemagglutination inhibition (HAI) assay, which represents the most established correlate with vaccine protectiveness. The in vitro response was measured by activation-induced cytidine deaminase (AID) in cultures of vaccine-stimulated PBMC. Both responses are somewhat impaired in IBD patients undergoing anti-TNF-α treatment but these are much more decreased in IBD patients undergoing treatment with anti-TNF-α and immunosuppressive (IS) drugs. These latter patients had in vivo and in vitro B cell responses similar to those of elderly individuals. Moreover, as we have previously demonstrated in healthy subjects, the in vitro response to the polyclonal stimulus CpG may be used as a biomarker for subsequent vaccine response and AID activation is correlated with the serum response in IBD patients, as it is in healthy individuals. These results altogether indicate that IBD patients on anti-TNF-α and IS have significantly impaired in vivo and in vitro B cell responses, as compared to those on monotherapy. This is the first report to demonstrate that B cell defects, as measured by the autonomous AID reporter, in IBD patients contribute to reduced humoral responses to the influenza vaccine, as we have previously shown for elderly individuals. 相似文献
9.