全文获取类型
收费全文 | 2708篇 |
免费 | 101篇 |
国内免费 | 22篇 |
专业分类
耳鼻咽喉 | 113篇 |
儿科学 | 163篇 |
妇产科学 | 91篇 |
基础医学 | 173篇 |
口腔科学 | 71篇 |
临床医学 | 183篇 |
内科学 | 564篇 |
皮肤病学 | 30篇 |
神经病学 | 256篇 |
特种医学 | 114篇 |
外科学 | 727篇 |
综合类 | 34篇 |
预防医学 | 35篇 |
眼科学 | 72篇 |
药学 | 90篇 |
中国医学 | 1篇 |
肿瘤学 | 114篇 |
出版年
2024年 | 2篇 |
2023年 | 20篇 |
2022年 | 25篇 |
2021年 | 52篇 |
2020年 | 38篇 |
2019年 | 56篇 |
2018年 | 57篇 |
2017年 | 35篇 |
2016年 | 90篇 |
2015年 | 96篇 |
2014年 | 105篇 |
2013年 | 138篇 |
2012年 | 176篇 |
2011年 | 150篇 |
2010年 | 106篇 |
2009年 | 93篇 |
2008年 | 202篇 |
2007年 | 233篇 |
2006年 | 211篇 |
2005年 | 226篇 |
2004年 | 196篇 |
2003年 | 175篇 |
2002年 | 139篇 |
2001年 | 40篇 |
2000年 | 31篇 |
1999年 | 24篇 |
1998年 | 23篇 |
1997年 | 10篇 |
1996年 | 11篇 |
1995年 | 8篇 |
1994年 | 6篇 |
1993年 | 5篇 |
1992年 | 4篇 |
1991年 | 12篇 |
1990年 | 12篇 |
1989年 | 7篇 |
1988年 | 5篇 |
1984年 | 4篇 |
1983年 | 1篇 |
1980年 | 1篇 |
1979年 | 1篇 |
1978年 | 2篇 |
1977年 | 1篇 |
1966年 | 2篇 |
排序方式: 共有2831条查询结果,搜索用时 15 毫秒
71.
Nuray Yazihan Haluk Ataoglu Guzin Ozelci Kavas Nalan Akyurek Burcu Yener Cengiz Aydm 《Journal of investigative surgery》2013,26(6):340-347
ATP dependent K channels (K-ATP) take part in the Erythropoietin (EPO) induced cardioprotection but these channel activations have role in cytoprotective role of EPO in the renal ischemia reperfusion (IR) damage is still unknown. For this purpose rats were pretreated with EPO (500 IU/kg) and/or K-ATP channel blocker glibenclamide (40mM/kg) i.p. before bilateral renal IR damage. Renal tissues were used for histological examination and measurement of caspase-3 and TNF-α levels. Renal functions were evaluated by glomerular filtration rate (GFR) fractional excretion of sodium (FENa) and potassium (FEK). Renal TNF-α and caspase-3 levels were decreased in both glibenclamide and EPO-treated IR rats compared to untreated rats. The protection afforded by the pretreatment with EPO alone was greater than that of administering glibenclamide alone. Application of glibenclamide at the same time partly abolished the cytoprotective effect of EPO treatment. K-ATP mediated cytoprotection is not the main mechanism of protective effect of EPO. 相似文献
72.
73.
Nihat Egemen Mustafa K. Baskaya R. Kazim Tiirker Agahan Unlii siikrii caglar Cengiz Giiven 《Neurological research》2013,35(4):301-306
AbstractThe resolution of cerebral vasospasm and protection of endothelial damage by lloprost was evaluated with multicisternal injections. Sixteen adult mongrel dogs (18-20 kg) were assigned to one of three experimental groups. All animals received a total amount of 15 ml fresh unheparinized arterial blood via three injections into the cisterna magna. Selective vertebral angiography was performed on day 0 and subsequently blood injections were performed on the 2nd and 3rd days after the first injection. On the 7th day angiography was reperformed to determine the chronic vasospasm. The first group (5 dogs) was the control group and received intrathecal saline which was equal to the amount of saline in which lloprost was diluted. The second group (5 dogs) did not receive any treatment until the 7th day. The third group (6 dogs) received lloprost intrathecally (total 10 fig kg~1). In the first two groups angiographic vasospasm was prominent. For the second group intraarterial lloprost was given on the 7th day in order to evaluate its acute effect. However there was no evidence of resolution of vasospasm. In the third'group, resolution of vasospasm was verified on angiograms. Electron microscope studies of basilar arteries of the first two groups revealed degenerative changes of the endothelial cells which were separated from each other and the elastic lamina was irregularly arranged. In the intrathecal lloprost-treated group there was little thickening in the elastic lamina and the endothelial cells were almost normal in structure. These results can be considered as the evidence of the prophylactic effect of lloprost given by the intrathecal route in the prevention of chronic cerebral vasospasm. [Neurol Res 1995; 17: 301-306] 相似文献
74.
Balgetir Ferhat Gnen Murat Berilgen Aye Ayta Emrah Demir Caner Feyzi Mngen Blent 《Neurological sciences》2022,43(4):2565-2570
Neurological Sciences - Restless legs syndrome (RLS) is a well-established disease that has recently been shown to have variants affecting the arms, face, abdomen, and genital area. To our... 相似文献
75.
76.
Ebru Gok Oguz Guner Karaveli Gursoy Ozlem Yayar Tolga Yildirim Tolga Cimen Cengiz Bulut 《Renal failure》2016,38(8):1180-1186
Introduction: Left ventricular hypertrophy (LVH) is one of the most common cardiac abnormalities in patients with end stage renal disease (ESRD). Hypertension, diabetes, increased body mass index, gender, age, anemia, and hyperparathyroidism have been described as risk factors for LVH in patients on dialysis. However, there may be other risk factors which have not been described yet. Recent studies show that renalase is associated with cardiovascular events. The aim of this study was to reveal the relation between renalase, LVH in patients under hemodialysis (HD) treatment.Methods: The study included 50?HD patients and 35 healthy controls. Serum renalase levels and left ventricle mass index (LVMI) were measured in all participants and the relation between these variables was examined.Findings: LVMI was positively correlated with dialysis vintage and C-reactive protein (CRP) (r?=?0.387, p?=?0.005 and r?=?0.597, p?0.001, respectively) and was negatively correlated with residual diuresis and hemoglobin levels (r?=??0.324, p?=?0.022 and r?=??0.499, p?0.001, respectively). There was no significant association of renalase with LVMI in the HD patients (r?=?0.263, p?=?0.065). Serum renalase levels were significantly higher in HD patients (212?±?127?ng/mL) compared to controls (116?±?67?ng/mL) (p?0.001). Renalase was positively correlated with serum creatinine and dialysis vintage (r?=?0.677, p?0.001 and r?=?0.625, p?0.001, respectively).Discussion: In our study, LVMI was correlated with dialysis vintage, residual diuresis, CRP, and hemoglobin. LVMI tends to correlate with renalase and this correlation may be significant in studies with more patient numbers. The main parameters affecting renalase levels are dialysis vintage and serum creatinine. 相似文献
77.
78.
79.
Pinar T Akdur R Tuncbilek A Altundag K Cengiz M 《Journal of the National Medical Association》2007,99(1):64, 68-64, 71
OBJECTIVE: The objective of this study was to investigate the relationship between occupation and head and neck cancers. PATIENTS AND METHODS: In this case-control study, 206 Turkish patients with head and neck cancers comprised the case group. The control group consisted of 206 age- and sex-matched patients without malignant disease. All patients completed a questionnaire regarding occupation; tobacco and alcohol consumption; educational status; and history of any systemic disease, benign head and neck disease, and cancer among family members. High-risk jobs were considered those in the industries of construction, wood, mining, metal, chemistry and agriculture. RESULTS: Patients with head and neck cancers worked in high-risk occupations more frequently than did controls [odds ratio (OR): 3.42, p<0.05]. Cancer risk decreased with the increase in time interval between quitting the high-risk job and time of interview. Smokers were at higher risk than nonsmokers (OR: 3.33, p<0.05). The risk was also higher in patients who drank alcohol regularly (OR: 1.59, p<0.05). However, occupation was found to be an independent high-risk factor for head and neck cancers in regression analysis. Frequency of benign head and neck disease and family history of cancer were not significant risk factors (p>0.05). CONCLUSION: Our analysis showed that occupation and smoking were significant independent risk factors for the development of head and neck cancers among workers. 相似文献
80.
Utilization of health‐care services by young children: The aftermath of the Turkish Health Transformation Program
下载免费PDF全文
![点击此处可从《The International journal of health planning and management》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Asena Caner Deniz Karaoğlan Gülbiye Yaşar 《The International journal of health planning and management》2018,33(3):596-613
The Turkish Health Transformation Program, initiated in 2003, has identified achieving universal access to health care as 1 of its main tenets. To date, substantial progress has been made toward universal health coverage. Service utilization statistics display an upward trend. In this study, we use official and nationally representative microdata collected by the Turkish Health Research Surveys to examine young children's (ages 0‐5) utilization of health services. Children in this age group deserve special attention because adverse health conditions in early childhood are known to have long‐time consequences. Policy makers regularly monitor statistics such as infant mortality rate and under‐5 mortality rate. We conduct logistic regression analyses to explain the probabilities of being taken to a health institution, to a dentist, and being included in the newborn screening program. We use a rich set of explanatory variables that represent the socioeconomic status (SES) of the child's household. Contrary to our expectations and to the goals of universal health coverage is SES indicators such as the insurance ownership of the parent matter for utilization. Decomposition analyses confirm these findings and reveal that the increase in utilization should have been higher than observed. Children from low SES households should be given special attention and that research efforts should focus on identifying the barriers that still hinder children's utilization of health‐care services. 相似文献