1. Perinatology Research Branch NICHD/NIH/DHHS Detroit Michigan and Bethesda, Maryland USA
2. CEDIP, Department of Obstetrics and Gynecology, Sotero del Rio Hospital Puente Alto Chile
3. Department of Pediatric Cardiology Joana de Gusmao Children's Hospital Florianopolis Brazil
4. Department of Obstetrics and Gynecology Seoul National University Seoul Korea
5. Department of Obstetrics and Gynecology University of Insubria Varese Italy
6. Department of Obstetrics and Gynecology William Beaumont Hospital Royal Oak Michigan USA
7. Department of Obstetrics and Gynecology Wayne State University/Hutzel Hospital Detroit Michigan USA
8. Department of Obstetrics and Gynecology Emory University Hospital Atlanta Georgia USA
9. Department of Obstetrics and Gynecology Ben Gurion University of the Negev Beer Sheva Israel
10. Feral Diagnostic Centre Pasadena California USA