 Timing |
 Disease (congenital rubella syndrome) |
 Pesticide exposure |
 Fetal alcohol syndrome |
 Anencephaly (some genetic, some teratogenic) |
 Cleft palate (some genetic, some teratogenic) |
 Various (some genetic, some teratogenic) |
 Limb malformations (some genetic, some teratogenic) |
 Thalidomide |
 Thalidomide |
 Amphibian malformations |
 Amphibian malformations |