作者单位:
Fetal Medicine Foundation USA, Dayton, OH, United States, Division of Maternal Fetal Medicine
[1]
GE Medical Systems Kretztechnik GmbH and Co OHG, Zipf, Austria
[2]
Department of Obstetrics and Gynaecology, University of Tuebingen, Tuebingen, Germany
[3]
发布时间
2014-06-12