The experimental design for the successful conduct of a ten year prospective randomized double-bond clinical trial comparing outcome measures for VP function for speech and other variables - Williams, William; Pegoraro-Krook, Maria Inês; Seagle, Brent; Dutka-Souza, Jeniffer de Cássia Rillo; Nackashi, John; Souza, Telma; Garla, Luis; Machado, José; Silva, Marcos; Wharton, William; Graciano, Maria; Boggs, Steve; et al. (Annual Meeting of the American Cleft Palate-Craniofacial Association, 2006)