title: The Teratology Society 39th annual meeting, June 29-July 4, 1999 and the 11th International Conference of the Organization of Teratology Information Services (OTIS), June 28-July 1, 1999. Keystone, Colorado, USA. Abstracts.
mesh_terms: D000818:Animals; D000013:Congenital Abnormalities; D006801:Humans; D018600:Teratology