1. Birth defects following maternal exposure to ergotamine, beta blockers, and caffeine;Hughes, H.E.; Goldstein, D.A.;J Med Genet,1988
2. Aetiological monitor of congenital abnormalities: a case control surveillance system;Czeizel, A.; Pzsa, A.; Pusztai, J.; Nagy, M.;Acta Paediatr Acad Sci Hung,1983
3. The patient, now aged seven years, was initially seen for evaluation of short stature, developmental delay, and unusual facial features, most notably a single central maxillary incisor. Growth hormone studies were unremarkable, but a lymphocyte karyotype