Waardenburg syndrome: differentiation between types and risks of deafness - Pardono, Eliete; Mazzeu, Juliana Forte; Lezirovitz, Karina; Nascimento, R. M. P.; Auricchio, Maria Teresa Ballester de Melo; Mingroni Netto, Regina Celia; Otto, Paulo A (Annual Meeting of the American Society of Human Genetics, 2005)