全文获取类型
收费全文 | 439篇 |
免费 | 88篇 |
国内免费 | 9篇 |
专业分类
耳鼻咽喉 | 4篇 |
儿科学 | 10篇 |
妇产科学 | 3篇 |
基础医学 | 33篇 |
口腔科学 | 5篇 |
临床医学 | 106篇 |
内科学 | 122篇 |
皮肤病学 | 17篇 |
神经病学 | 32篇 |
特种医学 | 84篇 |
外科学 | 36篇 |
综合类 | 5篇 |
现状与发展 | 1篇 |
预防医学 | 17篇 |
眼科学 | 2篇 |
药学 | 24篇 |
中国医学 | 1篇 |
肿瘤学 | 34篇 |
出版年
2024年 | 4篇 |
2023年 | 24篇 |
2022年 | 5篇 |
2021年 | 5篇 |
2020年 | 20篇 |
2019年 | 8篇 |
2018年 | 19篇 |
2017年 | 22篇 |
2016年 | 22篇 |
2015年 | 12篇 |
2014年 | 19篇 |
2013年 | 23篇 |
2012年 | 9篇 |
2011年 | 8篇 |
2010年 | 14篇 |
2009年 | 12篇 |
2008年 | 14篇 |
2007年 | 13篇 |
2006年 | 10篇 |
2005年 | 14篇 |
2004年 | 10篇 |
2003年 | 9篇 |
2002年 | 8篇 |
2001年 | 9篇 |
2000年 | 12篇 |
1999年 | 12篇 |
1998年 | 20篇 |
1997年 | 8篇 |
1996年 | 5篇 |
1995年 | 7篇 |
1994年 | 19篇 |
1993年 | 10篇 |
1992年 | 7篇 |
1991年 | 5篇 |
1990年 | 5篇 |
1989年 | 14篇 |
1988年 | 14篇 |
1987年 | 10篇 |
1986年 | 5篇 |
1985年 | 10篇 |
1984年 | 13篇 |
1983年 | 9篇 |
1982年 | 7篇 |
1981年 | 5篇 |
1980年 | 7篇 |
1979年 | 1篇 |
1978年 | 5篇 |
1977年 | 3篇 |
1976年 | 4篇 |
1975年 | 6篇 |
排序方式: 共有536条查询结果,搜索用时 55 毫秒
1.
Perceptual dysfunction in hemiplegia and automobile driving. 总被引:1,自引:0,他引:1
Sixteen post-stroke, hemiplegic patients, who requested that they be allowed to return to driving, were extensively evaluated by a physiatrist, psychologist, occupational therapist, and driver training specialist. After they completed a driver training program, the patients were divided into three groups based on their driving program success and follow-ups. Significant differences in the psychological test results were found between Group I (those who drove without any difficulty) and Groups II and III (those who drove limited distance or who failed driver training). Results suggest that patients with significant cognitive and perceptual problems who take training and limit their driving can be safe drivers when they return to driving. 相似文献
2.
3.
Ross BD; Jacobson S; Villamil F; Korula J; Kreis R; Ernst T; Shonk T; Moats RA 《Radiology》1994,193(2):457
4.
5.
Clinical interpretation of the MMPI most often utilizes configural or profile analysis. However, most MMPI research has focused only on single scale comparisons. In this study sorting rules to identify four common MMPI configurations were developed and applied to four S populations (N = 157): Chronic low back pain patients, migraine headache patients, hypertensives, and diabetics. No differences in frequencies of these profile types were found among the groups, although the chronic low back pain patients did have more elevated profiles. Variables of age, chronicity of illness and gender did not seem to influence profile type, while some differences were found between patients who rated themselves high and low in activity limitation due to the illness. 相似文献
6.
Kirkpatrick SE; Pitlick PT; Naliboff J; Friedman WF 《The American journal of physiology》1976,231(2):495-500
7.
BD White A Kong E Khoo AM Southcott 《Journal of Medical Imaging and Radiation Oncology》2005,49(4):319-321
Tracheobronchopathia osteochondroplastica (TO) is a rare benign disease characterized by the presence of osseous and cartilaginous submucosal nodules projecting into the tracheobronchial tree. Most cases are asymptomatic and discovered incidentally at post‐mortem. We identified a case of TO on thoracic spiral CT and confirmed the diagnosis on bronchoscopy. This article reviews the imaging characteristics of TO, and shows the 3‐D virtual bronchoscopic and multiplanar reconstruction appearances of TO. 相似文献
8.
WBG Macdonald AP Patrikeos RI Thompson BD Adler AA Van Der Schaaf 《Journal of Medical Imaging and Radiation Oncology》2005,49(1):32-38
The present study compared the accuracy of ventilation perfusion scintigraphy (VQS) and CT pulmonary angiography (CTPA) for the diagnosis of pulmonary embolism. This was a prospective observational study of 112 patients with suspected pulmonary embolism (PE) who could be studied with both investigations within 24 h. Results were compared to final diagnosis at completion of 6-month follow up, using receiver operating characteristic (ROC) analysis. Pulmonary embolism was diagnosed in 27 referred patients (24%). The sensitivity and specificity of VQS and CTPA were similar to that reported from the literature. A normal VQ scan had the highest negative predictive value (100%), while a high-probability VQ scan had the highest positive predictive value (92%). There was no overall difference (area under the ROC curve (AUC)) between VQS (AUC (95% CI) = 0.82 (0.75,0.89)) and CTPA (AUC = 0.88 (0.81,0.94)) for the diagnosis of PE. Among patients with abnormal chest X-rays, CTPA (AUC 0.90 (0.83,0.97)) appeared somewhat better than VQS (AUC 0.78 (0.68,0.88)) but this difference did not reach statistical significance. In this instance, CTPA is at least as accurate as VQS and may provide an opportunity to make alternative diagnoses. 相似文献
9.
10.