1. Charité-Universitätsmedizin Berlin and Pharmakovigilanz und Beratungszentrum Embryonaltoxikologie; Berlin Germany
2. University of California at San Diego; La Jolla California
3. Centre de Référence sur les Agents Tératogènes, Hôpital Universitaires Paris Est, AP-HP; Paris France
4. Hospices Civils de Lyon and Centre Régional de Pharmacovigilance; Lyon France
5. Israel Ministry of Health and Israeli Teratology Information Service; Jerusalem Israel
6. Netherlands Pharmacovigilance Centre Lareb, MH; 's-Hertogenbosch The Netherlands
7. Azienda Ospedaliero Universitaria Careggi and Centro di Riferimento Regionale di Tossicologia Perinatale; Florence Italy
8. University of Padua and Servizio di Informazione Teratologica; Padua Italy
9. University Hospital, Lausanne and Swiss Teratogen Information Service; Lausanne Switzerland
10. Ospedali Riuniti and Poison Control Center and Teratology Information Service; Bergamo Italy
11. Hospital for Sick Children; Toronto, Ontario Canada
12. HUSLAB and Helsinki University Central Hospital, Teratology Information; Helsinki Finland
13. Beuth Hochschule für Technik Berlin; Berlin Germany