作者单位:
Department of Obstetrics and Gynecology, Sahlgrenska University Hospital, Gothenburg, Sweden
[1]
Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
[2]
Department of Obstetrics and Gynecology, Central Hospital, Uddevalla, Sweden
[3]
Institute of Health and Care Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg
[4]
Department of Obstetrics and Gynecology, Central Hospital, Sk?vde SE-541 85, Sweden, School of Life
[5]
Department of Obstetrics and Gynecology, Central Hospital, Sk?vde SE-541 85, Sweden
[6]
发布时间
2013-11-20