全文获取类型
收费全文 | 1730篇 |
免费 | 78篇 |
国内免费 | 4篇 |
专业分类
耳鼻咽喉 | 8篇 |
儿科学 | 55篇 |
妇产科学 | 15篇 |
基础医学 | 135篇 |
口腔科学 | 35篇 |
临床医学 | 123篇 |
内科学 | 331篇 |
皮肤病学 | 155篇 |
神经病学 | 98篇 |
特种医学 | 43篇 |
外科学 | 390篇 |
综合类 | 14篇 |
一般理论 | 1篇 |
预防医学 | 47篇 |
眼科学 | 99篇 |
药学 | 130篇 |
中国医学 | 2篇 |
肿瘤学 | 131篇 |
出版年
2024年 | 1篇 |
2023年 | 30篇 |
2022年 | 57篇 |
2021年 | 132篇 |
2020年 | 64篇 |
2019年 | 84篇 |
2018年 | 92篇 |
2017年 | 45篇 |
2016年 | 76篇 |
2015年 | 72篇 |
2014年 | 100篇 |
2013年 | 103篇 |
2012年 | 175篇 |
2011年 | 146篇 |
2010年 | 89篇 |
2009年 | 67篇 |
2008年 | 84篇 |
2007年 | 74篇 |
2006年 | 67篇 |
2005年 | 46篇 |
2004年 | 54篇 |
2003年 | 51篇 |
2002年 | 32篇 |
2001年 | 8篇 |
2000年 | 3篇 |
1999年 | 12篇 |
1998年 | 16篇 |
1997年 | 13篇 |
1996年 | 4篇 |
1995年 | 3篇 |
1991年 | 1篇 |
1990年 | 2篇 |
1987年 | 1篇 |
1986年 | 2篇 |
1985年 | 2篇 |
1981年 | 2篇 |
1977年 | 1篇 |
1976年 | 1篇 |
排序方式: 共有1812条查询结果,搜索用时 0 毫秒
991.
992.
993.
994.
995.
Retrospective clinical and histopathological review of eight silicone oil-filled enucleated eyeballs using light microscopy was carried out in our department of ocular pathology during a period of six years. In all cases, silicone oil vacuoles, both free and incorporated within macrophages were seen in all the retinal layers. Silicone oil vacuoles were seen in the optic nerve, choroid, retinal pigment epithelium, corneal stroma, iris and ciliary body stroma, preretinal and subretinal membranes and retro-corneal membranes. Silicone oil migration could be seen in intraocular tissues as early as two months post surgery. There was no definite histopathological correlation between duration of tamponade and distribution of silicone oil vacuoles. Silicone oil vacuoles were seen in the optic nerve in eyes with neovascular glaucoma. Chronic inflammatory reaction was observed in the retinal tissue in the vicinity of silicone oil vacuoles. 相似文献
996.
Chronic recurrent endophthalmitis can occur following uncomplicated cataract surgery with intraocular lens implantation secondary to organisms sequestered in the capsular bag. There is a need to identify these sequestered organisms to facilitate appropriate management. Frequently, specimens from the anterior chamber and vitreous cavity could be unyielding, especially in the early cases in which the vitreous is still uninvolved. This article highlights the technique of directly sampling the capsular bag material in the effective diagnosis of the organism, which facilitates the total cure by irrigation with appropriate antibiotics into the capsular bag. 相似文献
997.
Shukla RP Sharma SN Nanda N Dhiman RC Dash AP 《Journal of the American Mosquito Control Association》2008,24(2):214-218
Clinic data depicted a high incidence of malaria in a forest ecotype in the Kumaon foothills of District Nainital, Uttarakhand, India. A study was therefore conducted to determine the risk factors associated with the transmission of malaria from 2002 to 2004. The man-hour densities of Anopheles culicifacies and An. fluviatilis varied from 2 to 139 and 1 to 69, respectively. The sporozoite rate of 0.24% was recorded in An. culicifacies. Sibling species investigation revealed prevalence of species B (53.8%) and C (46.2%) of An. culicifacies and of species T (100%) of An. fluviatilis complexes. The slide positivity rate and slide falciparum rate were 50.4% and 28.3%, respectively. The infant parasite rate was 42.9% and the enlarged spleen rate among the children was 25.95%. The findings revealed the persistence of malaria in the area mainly due to indigenous transmission through the malaria vector An. culicifacies and the inadequacy of intervention measures. Transmission could be curtailed by indoor residual application of malathion. 相似文献
998.
We present a series of six patients who had been receiving treatment for normal tension glaucoma (NTG; five patients) or primary open angle glaucoma (one patient). All of them were found to have optic neuropathy secondary to compression of the anterior visual pathway. Even though uncommon, compression of the anterior visual pathway is an important differential diagnosis of NTG. Diagnosis of NTG should be by exclusion. Here the possible causes of misdiagnosis are discussed. We present an approach to distinguish glaucomatous from nonglaucomatous optic neuropathy. The article also emphasizes how important it is for the clinicians to consider the total clinical picture, and not merely the optic disc morphology, to avoid the mismanagement of glaucoma, especially the NTG. 相似文献
999.
1000.
Aditya D Hendrani Tolulope Adesiyun Renato Quispe Steven R Jones Neil J Stone Roger S Blumenthal Seth S Martin 《World journal of cardiology》2016,8(2):201-210
Cardiovascular disease is the leading cause of death in the United States. In 2010, the Centers for Disease Control and Prevention estimated that $444 billion was spent on cardiovascular diseases alone, about $1 of every $6 spent on health care. As life expectancy continues to increase, this annual cost will also increase, making costeffective primary prevention of cardiovascular disease highly desirable. Because of its role in development of atherosclerosis and clinical events, dyslipidemia management is a high priority in cardiovascular prevention. Multiple major dyslipidemia guidelines have been published around the world recently, four of them by independent organizations in the United States alone. They share the goal of providing clinical guidance on optimal dyslipidemia management, but guidelines differ in their emphasis on pharmacotherapy, stratification of groups, emphasis on lifestyle modification, and use of a fixed target or percentage reduction in low density lipoprotein cholesterol. This review summarizes eight major guidelines for dyslipidemia management and considers the basis for their recommendations. Our primary aim is to enhance understanding of dyslipidemia management guidelines in patient care for primary prevention of future cardiovascular risk. 相似文献