作者单位:
Department of Gynecology and Obstetrics, Cantonal Hospital, Frauenfeld, Switzerland
[1]
Department of Medical Statistics, Georg August University, G?ttingen, Germany
[2]
Department of Gynecology and Obstetrics, Evangelisches Krankenhaus, Hagen-Haspe, Hagen, Germany
[3]
发布时间
2014-03-27