全文获取类型
收费全文 | 105篇 |
免费 | 7篇 |
国内免费 | 3篇 |
专业分类
儿科学 | 6篇 |
基础医学 | 13篇 |
临床医学 | 6篇 |
内科学 | 29篇 |
神经病学 | 25篇 |
特种医学 | 6篇 |
外科学 | 14篇 |
预防医学 | 5篇 |
眼科学 | 1篇 |
药学 | 5篇 |
肿瘤学 | 5篇 |
出版年
2022年 | 1篇 |
2021年 | 3篇 |
2019年 | 1篇 |
2018年 | 2篇 |
2017年 | 1篇 |
2016年 | 2篇 |
2015年 | 5篇 |
2014年 | 4篇 |
2013年 | 3篇 |
2012年 | 7篇 |
2011年 | 12篇 |
2010年 | 1篇 |
2009年 | 3篇 |
2008年 | 4篇 |
2007年 | 5篇 |
2006年 | 5篇 |
2005年 | 7篇 |
2004年 | 3篇 |
2003年 | 3篇 |
2002年 | 5篇 |
2000年 | 1篇 |
1994年 | 1篇 |
1993年 | 1篇 |
1991年 | 1篇 |
1985年 | 1篇 |
1984年 | 2篇 |
1983年 | 1篇 |
1980年 | 1篇 |
1979年 | 2篇 |
1978年 | 1篇 |
1976年 | 1篇 |
1974年 | 2篇 |
1972年 | 1篇 |
1971年 | 5篇 |
1970年 | 2篇 |
1969年 | 3篇 |
1968年 | 8篇 |
1967年 | 1篇 |
1966年 | 2篇 |
1955年 | 1篇 |
排序方式: 共有115条查询结果,搜索用时 15 毫秒
101.
102.
103.
104.
Fernando Henpin Yue Cesena Desiderio Favarato Luiz Ant?nio Machado César Sérgio Almeida de Oliveira Protásio Lemos da Luz 《European journal of cardio-thoracic surgery》2004,25(2):196-202
OBJECTIVES: Since waiting lists for coronary artery bypass graft surgery are common and carry a risk of severe events, the purposes of this study were: (1) to analyse the incidence and temporal distribution of cardiac complications during waiting for elective coronary artery bypass grafting; (2) to identify predictive factors of such complications. METHODS: Data were collected from 574 patients referred to surgery from 1 January 1998 to 12 July 2001. Two types of complications were defined: (1) a composite end-point, which included cardiac death, myocardial infarction, unstable angina or hospital admission due to cardiac cause; (2) sudden or any cardiac death. Previous cardiac events, risk factors, clinical features, laboratory exams, non-invasive tests for myocardial ischemia, left ventricular function and coronary anatomy were analysed. Kaplan-Meier method, multivariate Cox regression and Student's t-test were used for statistical analyses. RESULTS: Median time to surgery was 126 days (5-1022). Among 516 patients consecutively referred to the surgery from 1 January 1998 to 31 December 2000, sudden or cardiac death occurred in 2.5% and the composite end-point in 22.9%. Most complications (72.1%) were observed within 120 days. The main factors predictive of sudden or cardiac death were severe left ventricular dysfunction and heart failure (univariate analysis). Independent predictive factors of the composite end-point were angina, heart failure functional classes and high triglyceride levels. CONCLUSIONS: During long delay for coronary artery bypass surgery, cardiac events are frequent and tend to occur early. Severe left ventricular dysfunction, advanced angina, heart failure functional classes and high triglyceride level must be considered when selection is necessary, in order to diminish morbidity and mortality during the waiting period. 相似文献
105.
106.
107.
108.
109.
Irena Hausmanowa-Petrusewicz Jacek Zaremba Janina Borkowska Janina Prot 《Journal of neurology》1976,213(4):335-346
Summary A material of 247 cases selected from 260 cases of spinal muscular atrophy in the Warsaw Department of Neurology in 1960–1974 was analyzed. The size of sibships was established and calculations were made of the mean distribution of the age at onset, also according to sex, for the different clinical forms, genetical proportions by the method of siblings and of probands, and coefficient of sib-sib correlation for the material as a whole and separately for males, femals and male-female pairs.The analysis shows the course of the disease to differ between the sexes and to be mild in males more often than in females, as is particularly noticeable in the higher age groups. Cases of Kugelberg-Welander's disease are predominantly male. The hypothesis is advanced that a proportion of male patients have a sex-linked modifying gene of a fairly high frequency (possibly of the range of 1 in 5 males, and 1 in 25, in the homozygous state, in females).Although it would not disprove conclusively the nosological distinctness of different forms of infantile and juvenile spinal muscular atrophy, the existence of the modifying gene, if proved, would tend rather to add to the likelihood of their constituting a single recessive autosomal disease.From Genetic Laboratory of Institute of Psychoneurology. 相似文献
110.