1. Hospital for Rehabilitation of Craniofacial Anomalies, University of São Paulo, Bauru, SP, Brazil.
2. University of Florida, College of Medicine, Gainesville.
3. University of São Paulo, College of Medicine, Ribeirão Preto, SP, Brazil.
4. Communication Disorders Department, School of Dentistry of Bauru and Hospital for Rehabilitation of Craniofacial Anomalies, University of São Paulo, Bauru, SP, Brazil.