全文获取类型
收费全文 | 175篇 |
免费 | 14篇 |
专业分类
耳鼻咽喉 | 2篇 |
儿科学 | 5篇 |
妇产科学 | 4篇 |
基础医学 | 18篇 |
口腔科学 | 2篇 |
临床医学 | 19篇 |
内科学 | 33篇 |
皮肤病学 | 13篇 |
神经病学 | 31篇 |
特种医学 | 3篇 |
外科学 | 11篇 |
综合类 | 1篇 |
预防医学 | 21篇 |
眼科学 | 1篇 |
药学 | 13篇 |
肿瘤学 | 12篇 |
出版年
2023年 | 4篇 |
2022年 | 20篇 |
2021年 | 20篇 |
2020年 | 7篇 |
2019年 | 16篇 |
2018年 | 19篇 |
2017年 | 7篇 |
2016年 | 12篇 |
2015年 | 3篇 |
2014年 | 9篇 |
2013年 | 7篇 |
2012年 | 15篇 |
2011年 | 16篇 |
2010年 | 4篇 |
2009年 | 5篇 |
2008年 | 5篇 |
2007年 | 4篇 |
2006年 | 6篇 |
2005年 | 2篇 |
2003年 | 1篇 |
2002年 | 1篇 |
2000年 | 2篇 |
1999年 | 1篇 |
1996年 | 1篇 |
1994年 | 1篇 |
1993年 | 1篇 |
排序方式: 共有189条查询结果,搜索用时 15 毫秒
151.
152.
153.
The present study was designed to investigate whether L-ascorbic acid (AA) supplementation could prevent changes in renal hemodynamics in diabetic rats or not. The experiments were carried out in 48 male Sprague-Dawley rats. Diabetes mellitus was induced in rats by intravenous injection with streptozotocin (STZ) (55 mg/kg.bw), while the control rats were received citrate buffer alone. The renal hemodynamics was examined after the supplementation of AA (1 mg/l) for 8 and 16 weeks. The results demonstrated that AA could retard the increase (p<0.05) in renal vascular resistance (RVR) significantly compared with diabetic rats (STZ). Besides, at week 16, the effective renal plasma flow (ERPF) and the glomerular filtration rate (GFR) of STZ-AA were significantly higher than those of STZ (p<0.05). In conclusion, supplementation of AA was able to ameliorate the renal dysfunction in STZ-induced diabetic rats by decrease in RVR concomitant with an increase in both ERPF and GFR. 相似文献
154.
155.
Rebeiz TJ Mahfouz R Taher A Charafeddine Kh Kanj N 《Journal of thrombosis and thrombolysis》2009,28(2):245-247
We depict a case of a 32 year old Mediterranean man, presenting with pulmonary embolism, and diffuse arterial thrombosis of
the lower extremities. CT angiography revealed bilateral pulmonary artery occlusions and a mediastinal lymphadenopathy. Duplex
Ultrasound of the lower extremities showed no deep venous thrombosis, but occluded popliteal arteries bilaterally with extension
to the right distal superficial femoral artery. Mediastinoscopy with hilar lymph node biopsy showed noncaseating granulomas
consistent with sarcoidosis. Thrombophilia profile revealed factor II, MTHFR, and factor XIII gene mutations with markedly
elevated homocysteine level of 139 μmol/l. This is an atypical rare case of sarcoidosis presenting with pulmonary embolism
and multiple arterial thrombosis.
T. J. Rebeiz and R. Mahfouz contributed equally to the work and should both be considered as first authors. 相似文献
156.
157.
158.
Maya Saroufim Khalil Charafeddine Grace Issa Haifaa Khalifeh Robert H. Habib Atika Berry Nada Ghosn Alissar Rady Ibrahim Khalifeh 《Emerging infectious diseases》2014,20(10):1712-1715
In September 2012, a cutaneous leishmaniasis outbreak began among Syrian refugees in Lebanon. For 948 patients in whom leishmaniasis was not confirmed, we obtained samples for microscopic confirmation and molecular speciation. We identified Leishmania tropica in 85% and L. major in 15% of patients. After 3 months of megulamine antimonite therapy, patients initial cure rate was 82%. 相似文献
159.
Effect of the addition of chlorhexidine and miswak extract on the clinical performance and antibacterial properties of conventional glass ionomer: an in vivo study
下载免费PDF全文
![点击此处可从《International journal of paediatric dentistry / the British Paedodontic Society [and] the International Association of Dentistry for Children》网站下载免费的PDF全文](/ch/ext_images/free.gif)
160.
Some researchers suggest that the effect of smoking on health depends on socioeconomic status; while others purport that the effect of smoking on health is similar across all social groups. This question of the interaction between smoking and socioeconomic status is important to an improved understanding of the role of smoking in the social gradient in mortality and morbidity. For this purpose, we examined whether educational level modifies the association between smoking and mortality. Information on smoking by age, gender and educational level was extracted from the Belgian Health Interview Surveys of 1997 and 2001. The mortality follow up of the survey respondents was reported until December 2010. A Poisson regression was used to estimate the hazard ratio of mortality for heavy smokers, light smokers, and former smokers compared with never smokers by educational level controlling for age and other confounders. Among men, we found lower hazard ratios in the lowest educational category compared with the intermediate and high-educated categories. For instance, for heavy smokers, the hazard ratios were 2.59 (1.18-5.70) for those with low levels of education, 4.03 (2.59-6.26) for those with intermediate levels of education and 3.78 (1.52-9.43) for the highly educated. However, the interaction between smoking and education was not statistically significant. For women, the hazard ratios were not significant for any educational category except for heavy smokers with intermediate levels of education. Also here the interaction was not statistically significant. Our results support the hypothesis that educational attainment does not substantially influence the association between smoking and mortality. 相似文献