全文获取类型
收费全文 | 177篇 |
免费 | 19篇 |
国内免费 | 9篇 |
专业分类
耳鼻咽喉 | 1篇 |
儿科学 | 3篇 |
基础医学 | 31篇 |
口腔科学 | 4篇 |
临床医学 | 24篇 |
内科学 | 68篇 |
皮肤病学 | 1篇 |
神经病学 | 5篇 |
特种医学 | 7篇 |
外科学 | 12篇 |
综合类 | 8篇 |
预防医学 | 5篇 |
眼科学 | 1篇 |
药学 | 3篇 |
中国医学 | 4篇 |
肿瘤学 | 28篇 |
出版年
2023年 | 1篇 |
2022年 | 6篇 |
2021年 | 6篇 |
2020年 | 4篇 |
2019年 | 6篇 |
2018年 | 13篇 |
2017年 | 9篇 |
2016年 | 4篇 |
2015年 | 8篇 |
2014年 | 11篇 |
2013年 | 8篇 |
2012年 | 10篇 |
2011年 | 14篇 |
2010年 | 15篇 |
2009年 | 6篇 |
2008年 | 11篇 |
2007年 | 3篇 |
2006年 | 8篇 |
2005年 | 6篇 |
2004年 | 7篇 |
2003年 | 2篇 |
2002年 | 5篇 |
2001年 | 2篇 |
1996年 | 1篇 |
1995年 | 2篇 |
1994年 | 2篇 |
1993年 | 1篇 |
1992年 | 3篇 |
1990年 | 1篇 |
1987年 | 1篇 |
1984年 | 1篇 |
1982年 | 1篇 |
1980年 | 1篇 |
1979年 | 1篇 |
1978年 | 2篇 |
1977年 | 3篇 |
1976年 | 4篇 |
1975年 | 2篇 |
1974年 | 1篇 |
1973年 | 4篇 |
1972年 | 3篇 |
1971年 | 2篇 |
1970年 | 2篇 |
1968年 | 1篇 |
1967年 | 1篇 |
排序方式: 共有205条查询结果,搜索用时 15 毫秒
81.
Addition of oxaliplatin to neoadjuvant radiochemotherapy in MRI‐defined T3, T4 or N+ rectal cancer: a randomized clinical trial 下载免费PDF全文
82.
83.
Habibollahi Peiman Hunt Stephen Gade Terence Dagli Mandeep S. Mondschein Jeffrey I. Sudheendra Deepak Stavropoulos S. William Soulen Michael Gregory Nadolski 《Cardiovascular and interventional radiology》2018,41(1):112-119
CardioVascular and Interventional Radiology - Locoregional therapy (LRT) is recommended for certain groups of patients with hepatocellular carcinoma (HCC) listed for orthotopic liver... 相似文献
84.
Peiman Habibollahi Anil Chauhan Laith R. Sultan Lisa P. Jones Chandra M. Sehgal 《Ultrasound in medicine & biology》2017,43(7):1372-1377
A retrospective study was performed to evaluate the diagnostic value of tumor-to-cortex echogenicity ratio (TCER) in the characterization of hyper-echoic renal masses. The radiology database was queried between 2012 and 2014 for hyper-echoic renal masses on the basis of defined exclusion and inclusion criteria. Each included mass was characterized as either an angiomyolipoma (AML) or a non-AML based on pre-defined criteria. The ratio of renal mass echogenicity to that of adjacent renal cortex (TCER) was calculated for each mass using commercially available software. A total of 70 masses in 65 patients were identified, including 49 AMLs. TCER values >2.26 were associated with a sensitivity and specificity of 81.6% and 71.4%, respectively, for diagnosis of AML. Moreover, TCER values >3.98 resulted in 100% specificity for AML diagnosis with a sensitivity of 28.6%. These findings suggest that the TCER may be a valuable tool for the characterization of hyper-echoic renal masses. 相似文献
85.
Kourosh Holakouie-Naieni Mohammad Ali Mansournia Amin Doosti-Irani Abbas Rahimi-Foroushani Peiman Haddad 《The surgeon》2021,19(1):37-48
BackgroundThe aim of this review was to compare the available treatments of esophageal cancer, in terms of pulmonary, cardiovascular complications, anastomotic leakage, and esophagitis after treatment in patients with esophageal squamous cell carcinoma (SCC).MethodsMedline, Web of Science, Scopus, the Cochrane Library and Embase were searched. The randomized controlled trials (RCT) that had compared the treatment -related complications of treatments for esophageal SCC were included. We included 39 randomized control trials in a network meta-analysis. The Chi2-test was used to assess of heterogeneity. The loop-specific and design-by-treatment interaction methods were used for assessment of consistency assumption. The risk ratio with 95% confidence interval (CI) was used to report the effect-sizes in the network meta-analysis.ResultsThe pulmonary complication, cardiac complication, anastomotic leakage, and esophagitis were reported in 31, 11, 17, and 15 RCTs respectively. Video-assisted thoracoscopy + laparoscopy (VATS) was rank as the first and second treatment in terms of lower risk for pulmonary complication and anastomotic leakage. There was no statistically significant difference between treatments in terms of lower risk of cardiovascular complications. However, Surgery + Cisplatin + Fluorouracil (SCF) was ranked as better treatment. 3-dimensional conformal radiotherapy + Docetaxel + Cisplatin (3DCRTDC) was the best treatment in terms of lower risk for esophagitis.ConclusionAccording to the results of this study, it seems the risk of pulmonary, cardiovascular, anastomotic leakage and esophagitis complications for VATS, SCF, surgery + radiotherapy (SRT), and 3DCRTDC was lower than other treatments respectively in the networks. 相似文献
86.
Peiman Nazerian Giovanni Volpicelli Chiara Gigli Alessandro Lamorte Stefano Grifoni Simone Vanni 《Internal and emergency medicine》2018,13(4):567-574
Evaluating the diagnostic performance of focused cardiac ultrasound (US) alone and combination with venous US in patients with shock and suspected pulmonary embolism (PE). Consecutive adult patients with shock and suspected PE, presenting to two Italian emergency departments, were included. Patients underwent cardiac and venous US at presentation with the aim of detecting right ventricular (RV) dilatation and proximal deep venous thrombosis (DVT). Final diagnosis of PE was based on a second level diagnostic test or autopsy. Among the 105 patients included in the study, 43 (40.9%) had a final diagnosis of PE. Forty-seven (44.8%) patients showed RV dilatation and 27 (25.7%) DVT. Sensitivity and specificity of cardiac US were 91% (95% CI 80–97%) and 87% (95% CI 80–91%), respectively. Venous US showed a lower sensitivity (56%, 95% CI 45–60%) but higher specificity (95%, 95% CI 88–99%) than cardiac US (both p < 0.05). When cardiac and venous US were both positive (22 out of 105 patients, 21%) the specificity increased to 100% (p < 0.01 vs cardiac US), whereas when at least one was positive (54 out of 105 patients, 51%) the sensitivity increased to 95% (p = 0.06 vs cardiac US). Focused cardiac US showed good but not optimal sensitivity and specificity for the diagnosis of PE in patients presenting with shock. Venous US significantly increased specificity of cardiac US, and the diagnosis of PE can be certain when both tests are positive or reasonably excluded when negative. 相似文献
87.
The pathophysiology of takotsubo cardiomyopathy remains enigmatic. Here we attempted to define the link between the coronary arteries and the histopathological involvement of the left ventricle. We observed similarities and discrepancies between patients. All patients experienced stress prior to the event. We found a reduced coronary flow reserve in all patients and signs of hibernating myocardium on biopsy specimen. This raises a strong suspicion of stress-induced endothelial dysfunction with hibernating myocardium in the pathogenesis of this cardiomyopathy. 相似文献
88.
A 61-year-old woman with a congenital double-chamber left ventricle (DCLV) was admitted because of an anterior ST-elevation myocardial infarction (STEMI). Urgent coronary angiography showed a thrombotic occlusion of the distal part of the left anterior descending artery (LAD). The left ventricular injection revealed a slightly reduced ejection fraction, antero-apical akinesia and an accessory chamber. Two dimensional and three dimensional echocardiography showed anterior akinesia with an accessory chamber at the apex which was separated by a fibromuscular ridge distal to the papillary muscles. The DCLV with myocardial contraction in the additional chamber was originally diagnosed seven years ago during a routine follow-up echocardiography in the course of management for thyroid cancer and at that time left ventricular function was described to be normal. Thromboembolism was assumed to have originated from the hypocontractile left accessory chamber and the patient was set on oral anticoagulation. During follow-up global left ventricular function normalized. 相似文献
89.
90.