全文获取类型
收费全文 | 245篇 |
免费 | 13篇 |
国内免费 | 3篇 |
专业分类
耳鼻咽喉 | 1篇 |
儿科学 | 6篇 |
妇产科学 | 13篇 |
基础医学 | 26篇 |
口腔科学 | 12篇 |
临床医学 | 40篇 |
内科学 | 56篇 |
皮肤病学 | 1篇 |
神经病学 | 37篇 |
特种医学 | 1篇 |
外科学 | 21篇 |
综合类 | 2篇 |
预防医学 | 11篇 |
眼科学 | 9篇 |
药学 | 13篇 |
中国医学 | 2篇 |
肿瘤学 | 10篇 |
出版年
2022年 | 12篇 |
2021年 | 14篇 |
2020年 | 7篇 |
2019年 | 19篇 |
2018年 | 15篇 |
2017年 | 11篇 |
2016年 | 15篇 |
2015年 | 10篇 |
2014年 | 17篇 |
2013年 | 12篇 |
2012年 | 21篇 |
2011年 | 12篇 |
2010年 | 13篇 |
2009年 | 7篇 |
2008年 | 20篇 |
2007年 | 9篇 |
2006年 | 13篇 |
2005年 | 12篇 |
2004年 | 8篇 |
2003年 | 4篇 |
2002年 | 6篇 |
2001年 | 1篇 |
2000年 | 1篇 |
1999年 | 2篇 |
排序方式: 共有261条查询结果,搜索用时 15 毫秒
21.
22.
Seroprevalence,molecular epidemiology and quantitation of parvovirus B19 DNA levels in Iranian blood donors
下载免费PDF全文
![点击此处可从《Journal of medical virology》网站下载免费的PDF全文](/ch/ext_images/free.gif)
23.
The use of drugs predominantly among Iranian men leads to health and social problems. Iran has established methadone maintenance therapy centres but there is limited research exploring the experiences of men who make use of this therapy. The aim of this qualitative study was to explore the experiences of men on methadone maintenance therapy in Urmia, Iran. Sixteen opioid-dependent males on methadone syrup substitution therapy were interviewed. Transcribed data were subjected to thematic analysis. Three themes emerged from the data: (1) the role of family in drug addiction; (2) the role of environment in drug addiction; and (3) the support needed to overcome drug addiction. While drug rehabilitation programmes in Iran can help the person, their family is seen as the most important support that they need together with sociocultural acceptance to overcome stigmatisation. 相似文献
24.
Ryan Leone Katie J. Jensen Claire Abijay Troy Dolmetsch Natalie Koons Daniel N. Darlington Andrew P. Cap Xiaowu Wu Christopher P. Delavan Maryanne C. Herzig Barbara A. Christy Kelley M. Kempski August N. Blackburn Robert A. De Lorenzo Megan B. Blackburn Matthew C. Donald Harold G. Klemcke Brenna K. Harrington Celestine J. He Belinda I. Gómez Tony Chao Joshua S. Little Tiffany C. Heard Michael A. Dubick David M. Burmeister Amy Xu Kerfoot Walker III Arezoo Mohammadipoor Luis Rodriguez Teryn Roberts Andriy Batchinsky Leopoldo Cancio Ben Antebi Ryan A. Walford Colby S. McIntosh Grantham C. Peltier Umang Sharma Robbie K. Montgomery Michael A. Meledeo James A. Bynum Sarah Lovelace Larry Estlack Katherine Jensen Lexi Kazen Lee C. Mangum Gerardo R. Garcia Kevin S. Akers 《Journal of translational medicine》2017,15(4):222
25.
Arash Salmaninejad Arezoo Gowhari Seyedmojtaba Hosseini Saeed Aslani Meysam Yousefi Tayyeb Bahrami 《Journal of immunotoxicology》2017,14(1):137-151
Behçet’s disease (BD) is a chronic autoimmune condition primarily prevalent in populations along the Mediterranean Sea. The exact etiology of BD has not been fully explained yet, but the disease occurrence is associated with a genetic factor, human leukocyte antigen (HLA)-B51 antigen. Among the various immunodysfunctions that are found in BD, patients are increased neutrophil motility and superoxide production, as well as elevated production of tumor necrosis factor (TNF)-α and decreased production of interleukin (IL)-10. Elevated levels of inflammatory cytokines like IL-1 and IL-17 in BD have been found associated with aberrant expression of microRNA. Gene polymorphisms in BD patients have been observed in molecules involved in responses to pathogens that can ultimately modulate the host antimicrobial response. Moreover, several single nucleotide polymorphisms (SNPs) have been reported in genes encoding chemokines and adhesion molecules; many of these changes manifest as increases in vascular inflammation and vascular damage. Lastly, genetic and epigenetic changes have been suggested as involved in the pathogenesis of BD. Modifications in DNA methylation have been found in BD patient monocytes and lymphocytes, leading to adverse function of these cells. This review presents a comprehensive compilation of the literature with regard to the immunodysfunction underlying BD, as well as of the genetics, newly described clinical specifications and novel treatment strategies using immunomodulants based on the current understanding of BD. 相似文献
26.
27.
Asghari G Rezazadeh A Hosseini-Esfahani F Mehrabi Y Mirmiran P Azizi F 《The British journal of nutrition》2012,108(6):1109-1117
The aim of the present study was to assess the reliability, comparative validity and stability of dietary patterns defined by factor analysis for participants of the Tehran Lipid and Glucose Study. A total of 132 subjects, aged?≥?20 years, completed a 168-item FFQ (FFQ1, FFQ2) twice, with a 14-month interval. Over this duration, twelve dietary recalls (DR) were collected each month. To assess the stability of the FFQ, participants completed the third FFQ (FFQ3) after 8 years. Following these, two dietary patterns - the 'Iranian Traditional' and the 'Western' - were derived from FFQ1 and FFQ2 and the mean of DR (mDR); and three dietary patterns were identified from FFQ3: the 'Iranian Traditional', the 'Western' and the 'Combined'. The reliability correlations between factor scores of the two FFQ were 0·72 for the Iranian Traditional and 0·80 for the Western pattern; corrected month-to-month variations of DR correlations between the FFQ2 and mDR were 0·48 for the first and 0·75 for the second pattern. The 95?% limits of agreement for the difference between factor scores obtained from FFQ2 and mDR lay between -?1·58 and +1·58 for the Iranian Traditional and between -?1·33 and +1·33 for the Western pattern. The intra-class correlations between FFQ2 and FFQ3 were -?0·09 (P?=?0·653) and 0·49 (P?<0·001) for the 'Iranian Traditional' and the 'Western', respectively. These data indicate reasonable reliability and validity of the dietary patterns defined by factor analysis. Although the Western pattern was found to be fairly stable, the Iranian Traditional pattern was mostly unstable over the 8 years of the study period. 相似文献
28.
29.
Yaser Jenab Mohammad Javad Alemzadeh-Ansari Seyedeh Arezoo Fehri Neda Ghaffari-Marandi Arash Jalali 《The Journal of emergency medicine》2014
Background
There is limited information on the extent and clinical importance of the delay in hospital presentation of acute pulmonary thromboembolism (PTE).Objective
The aim of this study was to investigate the delay in hospital presentation of PTE and its association with clinical and imaging findings in PTE.Methods
This prospective study was conducted on patients admitted to our hospital with a diagnosis of acute PTE between September 2007 and September 2011. Relationships between delay in hospital presentation and clinical findings, risk factors, imaging findings, and in-hospital mortality were analyzed.Results
Of the 195 patients enrolled, 84 (43.1%) patients presented 3 days after the onset of symptoms. Patients with chest pain, history of immobility for more than 3 days, recent surgery, and estrogen use had significantly less delayed presentation. Right ventricular dysfunction was significantly more frequent in patients with delayed presentation (odds ratio [OR] = 2.38; 95% confidence interval [CI] 1.27−4.44; p = 0.006); however, no relationship was found between delay in presentation and pulmonary computed tomographic angiography or color Doppler sonography findings. Patients with delayed presentation were at higher risk of in-hospital mortality (OR = 4.32; 95% CI 1.12−16.49; p = 0.021).Conclusions
Our study showed that a significant portion of patients with acute PTE had delayed presentation. Also, patients with delayed presentation had worse echocardiographic findings and higher in-hospital mortality. 相似文献30.
Masoomeh Sofian Ebrahim Kalantar Arezoo Aghakhani Soudabeh Hosseini Mohammad Banifazl Ali Eslamifar Ali jourabchi Ali Asghar Farazi Amitis Ramezani 《Hepatitis monthly》2013,13(5)