全文获取类型
收费全文 | 612篇 |
免费 | 1篇 |
国内免费 | 3篇 |
专业分类
综合类 | 615篇 |
基础理论 | 1篇 |
出版年
2021年 | 6篇 |
2016年 | 1篇 |
2015年 | 1篇 |
2012年 | 14篇 |
2011年 | 72篇 |
2010年 | 59篇 |
2009年 | 46篇 |
2008年 | 37篇 |
2007年 | 49篇 |
2006年 | 44篇 |
2005年 | 44篇 |
2004年 | 43篇 |
2003年 | 41篇 |
2002年 | 39篇 |
2001年 | 27篇 |
1995年 | 36篇 |
1994年 | 28篇 |
1993年 | 2篇 |
1992年 | 4篇 |
1991年 | 2篇 |
1990年 | 6篇 |
1989年 | 3篇 |
1988年 | 2篇 |
1987年 | 1篇 |
1986年 | 1篇 |
1985年 | 1篇 |
1984年 | 4篇 |
1983年 | 3篇 |
排序方式: 共有616条查询结果,搜索用时 265 毫秒
141.
142.
143.
144.
145.
146.
147.
148.
149.
150.
Elisa Doné Leonardo Gucciardo Tim Van Mieghem Jacques Jani Mieke Cannie Dominique Van Schoubroeck Roland Devlieger Luc De Catte Philipp Klaritsch Steffi Mayer Veronika Beck Anne Debeer Eduardo Gratacos Kypros Nicolaides Jan Deprest 《黑龙江环境通报》2008,28(7):581-591
Congenital diaphragmatic hernia (CDH) can be associated with genetic or structural anomalies with poor prognosis. In isolated cases, survival is dependent on the degree of lung hypoplasia and liver position. Cases should be referred in utero to tertiary care centers familiar with this condition both for prediction of outcome as well as timed delivery. The best validated prognostic indicator is the lung area to head circumference ratio. Ultrasound is used to measure the lung area of the index case, which is then expressed as a proportion of what is expected normally (observed/expected LHR). When O/E LHR is < 25% survival chances are < 15%. Prenatal intervention, aiming to stimulate lung growth, can be achieved by temporary fetal endoscopic tracheal occlusion (FETO). A balloon is percutaneously inserted into the trachea at 26–28 weeks, and reversal of occlusion is planned at 34 weeks. Growing experience has demonstrated the feasibility and safety of the technique with a survival rate of about 50%. The lung response to, and outcome after FETO, is dependent on pre-existing lung size as well gestational age at birth. Early data show that FETO does not increase morbidity in survivors, when compared to historical controls. Several trials are currently under design. Copyright © 2008 John Wiley & Sons, Ltd. 相似文献