1. Department of Obstetrics and GynaecologyPrince of Wales Hospital, The Chinese University of Hong Kong Hong Kong
2. Fetal Medicine Unit – Maternal and Child Health and Development Network, Department of Obstetrics and GynaecologyUniversity Hospital 12 de Octubre, Instituto de Investigación Hospital 12 de Octubre, Universidad Complutense de Madrid Madrid Spain
3. Department of Obstetrics and GynecologyInselspital Bern University Hospital, University of Bern Bern Switzerland
4. Department of Obstetrics and Gynecology, CHR CitadelleCHU Liege Liege Belgium
5. Department of ObstetricsUniversity Hospital Leipzig Leipzig Germany
6. Department of Women and BabiesRoyal Prince Alfred Hospital Sydney Australia
7. KK Women's and Children's Hospital Singapore
8. Department of ObstetricsCharité – Universitätsmedizin Berlin Berlin Germany