全文获取类型
收费全文 | 601篇 |
免费 | 33篇 |
国内免费 | 7篇 |
专业分类
耳鼻咽喉 | 2篇 |
儿科学 | 6篇 |
妇产科学 | 9篇 |
基础医学 | 120篇 |
口腔科学 | 23篇 |
临床医学 | 61篇 |
内科学 | 98篇 |
皮肤病学 | 5篇 |
神经病学 | 60篇 |
特种医学 | 51篇 |
外科学 | 72篇 |
综合类 | 17篇 |
一般理论 | 1篇 |
预防医学 | 30篇 |
眼科学 | 4篇 |
药学 | 49篇 |
肿瘤学 | 33篇 |
出版年
2024年 | 1篇 |
2023年 | 6篇 |
2022年 | 13篇 |
2021年 | 25篇 |
2020年 | 14篇 |
2019年 | 12篇 |
2018年 | 17篇 |
2017年 | 10篇 |
2016年 | 23篇 |
2015年 | 24篇 |
2014年 | 27篇 |
2013年 | 32篇 |
2012年 | 52篇 |
2011年 | 41篇 |
2010年 | 34篇 |
2009年 | 23篇 |
2008年 | 44篇 |
2007年 | 44篇 |
2006年 | 40篇 |
2005年 | 28篇 |
2004年 | 30篇 |
2003年 | 26篇 |
2002年 | 22篇 |
2001年 | 6篇 |
2000年 | 5篇 |
1999年 | 1篇 |
1998年 | 3篇 |
1997年 | 1篇 |
1996年 | 2篇 |
1995年 | 2篇 |
1994年 | 3篇 |
1992年 | 3篇 |
1991年 | 4篇 |
1990年 | 3篇 |
1989年 | 2篇 |
1988年 | 4篇 |
1987年 | 2篇 |
1986年 | 6篇 |
1985年 | 2篇 |
1984年 | 1篇 |
1971年 | 1篇 |
1970年 | 1篇 |
1965年 | 1篇 |
排序方式: 共有641条查询结果,搜索用时 15 毫秒
101.
102.
103.
Trifunović B Delić J Mirković D Jovanović M Krsić J Zarić Z 《Vojnosanitetski pregled. Military-medical and pharmaceutical review》2011,68(10):856-860
BACKGROUND/AIM. Colorectal cancer (CRC) is one of the biggest health problems of modern humanity, especially in highly developed countries. In Serbia about 3,200 patients suffer from CRC, out of whom about 1,100 patients suffer from rectal cancer (RC), while about 2,100 patients suffer from other colon segments cancer. The aim of the study was to show the incidence genesis of one of the possible early postoperative complications regarding dehiscence of the colorectal anastomosis (CRA) with a group of patients suffering from RC and operated by using sphincter-saving procedures, in the period from 1993 to 2007, and then to compare the incidence genesis of these complications with those in the published series of the reporting colorectal institutions. METHODS: The research included 242 patients radically operated on for RC in a 15-year period using some of sphincter-saving procedures following by a careful analysis of the symptoms of subclinical dehyscencias not solved with the reintervention as well as of the clinically evidented dehyscencias mostly solved by reoperation. RESULTS: With 22 (9.1%) patients in the first 10 postoperative days there were early postoperative symptoms of CRA dehiscence. In 6 (2.47%) of the patients there were subclinical signs of raised body temperature, less quantity of feces content, and after the conservative treatment they ended in spontaneous process of rehabilitation. In 16 (6.61%) patients there was clinically evidented anastomosis dehiscence followed by abundant drainage of feces content, signs of local peritonitis, pelvic sepsis, so we had to undertake surgical intervention. CONCLUSION. Comparing the results of a few tenths of published studies with our results we proved that performing and operative technique of colorectal anastomosis in the patients suffered and radically surgically treated for RC, is quite adequate with the operative technique in reporting world institutions that are engaged in surgical treatment of RC. 相似文献
104.
105.
The aim of this study was to assess eventual differences in serum cholesterol, low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), triglycerides, LDL-C/HDL-C ratio between veterans with combat-related post-traumatic stress disorder (PTSD) only or comorbid with major depressive disorder (MDD), veterans with combat experiences with MDD, and healthy control group. PTSD and/ or MDD were diagnose according to structured clinical interview based on DSM-IV criteria. Additional criteria to diagnose PTSD were Clinician Administered PTSD Scale (CAPS), and to diagnose MDD Montgomery-Asberg Depression Rating Scale (MADRAS). Serum lipid concentrations were determined by using the enzyme-assay method. Veterans with combat-related PTSD as well as veterans with combat-related PTSD comorbid with MDD showed significantly higher concentrations of cholesterol (F=9.858, p<0.01), triglycerides (F=10.112, p<0.01), LDL-C (F=11.145, p<0.01), and LDL-C/HDL-C ratio (F=8.346, p<0.01) vs. veterans with MDD or healthy control group. Contrary healthy control group and veterans with MDD showed significantly higher concentrations of HDL-C (F=8.421, p<0.01), vs. veterans with PTSD or PTSD comorbid with MDD. In conclusion, there are no differences in serum lipid concentrations between veterans with combat-related PTSD and PTSD comorbid with MDD, but they have higher lipid concentrations than veterans with MDD or healthy control subjects. 相似文献
106.
Raguz M Bergovec M Kranjcec D Vrazić H Puksić S 《International journal of cardiology》2008,128(1):e37-e39
Acute risk factors are activities and events that suddenly and transiently increase the risk of acute cardiac events, as reported recently in International Journal of Cardiology. It has already been reported that sudden submersion in cold water may provoke myocardial infarction in both subjects with atherosclerotic coronary disease and young people with angiographically normal coronary arteries.We report a case of an acute myocardial infarction triggered by sudden exposure to cold air temperature extreme in a young person with acutely occluded proximal part of the left anterior descending coronary artery and normal other coronary arteries who had extreme obesity and cigarette smoking as cardiovascular risk factors.Our report indicates that the sudden cold exposure and the resulting cold shock response may provoke acute myocardial infarction in young susceptible patients. 相似文献
107.
108.
Background:In the last few decades, many techniques have been developed to correct prominent ear deformities. Modified Chong-Chet otoplasty represents a new and improved classical Chong-Chet procedure for prominent ear surgery. This study evaluates and compares the long-term results of standard Chong-Chet otoplasty with the modified technique.Methods:A retrospective study was conducted on patients undergoing otoplasty at the Special Hospital S-tetik Banja Luka between January 17, 2017, and February 5, 2019. The total number of patients undergoing the procedure was 129. The first group (48 patients) underwent otoplasty using the Chong-Chet technique, while the second group (81 patients) underwent a modified Chong-Chet procedure. All patients were randomly selected on the condition that the antihelix was absent.The data were processed and analyzed using the Statistical Package for the Social Sciences version 24 using nonparametric tests (χ2 test, Mann–Whitney U test and Kruskal–Wallis test).Results:Every second patient was satisfied (19 patients were partially satisfied and five patients were completely satisfied) with the results of the classical Chong-Chet technique. Seven patients were neither satisfied nor dissatisfied, while 17 patients were dissatisfied (11 patients were completely dissatisfied and 6 patients were mostly dissatisfied). As for the modified method, on average, nine out of 10 patients (73 or 90.1%) were satisfied, of which 49 patients (60.5%) were completely satisfied and 24 patients (29.6%) were mostly satisfied.The statistical significance was P < .05.Research results point to the modified Chong-Chet technique being a significant improvement to the classical method.Conclusion:Modified Chong-Chet technique increases the number of positive long-term results and significantly improves the standard method. 相似文献
109.
The design, fabrication and functional evaluation of the radio-frequency dielectric heating of liquids in an LTCC-based ceramic microfluidic system are described and discussed. The device, which relies on the dielectric heating of liquids, was fabricated using a low temperature co-fired ceramic (LTCC) technology. A multilayered ceramic structure with integrated electrodes, buried channels and cavities in micro and millimetre scales was fabricated. The structure with the dimensions of 35 mm × 22 mm × 2.4 mm includes a buried cavity with a diameter of 17.3 mm and a volume of 0.3 mL. The top and bottom faces of the cavity consist of silver/palladium electrodes protected with 100 μm thick layers of LTCC. The power, used to heat a polar liquid (water) in the cavity with the volume of 0.3 mL, ranges from 5 to 40 W. This novel application of RF dielectric heating could enable the miniaturization of microfluidic systems in many applications. The working principle of such a device and its efficiency are demonstrated using water as the heated medium. 相似文献
110.
Metformin exacerbates and simvastatin attenuates myelin damage in high fat diet‐fed C57BL/6 J mice
下载免费PDF全文
![点击此处可从《Neuropathology》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Darko Ciric Tamara Martinovic Sasa Petricevic Vladimir Trajkovic Vladimir Bumbasirevic Tamara Kravic‐Stevovic 《Neuropathology》2018,38(5):468-474
Diabetic neuropathy is one of the most deleterious complications of diabetes mellitus in humans. High fat diet (HFD)‐fed C57BL/6 J mice are a widely used animal model for type 2 diabetes mellitus and metabolic syndrome. We investigated the effects of metformin and simvastatin on the ultrastructural characteristics of sciatic nerve fibers in these mice. Metformin treatment increased the number of structural defects of the myelin sheet surrounding these fibers in already affected nerves of HFD fed mice, and simvastatin treatment reduced these numbers to the levels seen in control mice. These results warrant further research on the effects of metformin and statins in patients developing diabetic neuropathy and advise caution when deciding about optimal treatment modalities in these patients. 相似文献