1. UK Teratology Information Service Newcastle upon Tyne Hospitals NHS Foundation Trust Newcastle upon Tyne UK
2. Institute of Health and Society Newcastle University Newcastle upon Tyne UK
3. Department of Clinical Pharmacology Odense University Hospital Odense Denmark
4. Department of Clinical Research University of Southern Denmark Odense Denmark
5. The Israeli Teratology Information Service, Ministry of Health Jerusalem Israel
6. The Hebrew University Hadassah Medical School Jerusalem Israel
7. Women's Services Newcastle Upon Tyne NHS Foundation Trust, Royal Victoria Infirmary Newcastle upon Tyne UK