Affiliation: | 1. Department of Otolaryngology–Head & Neck Surgery, Center for Pediatric Voice and Swallowing Disorders, Stanford University, Palo Alto, California, U.S.A.;2. Department of Rehabilitation Services, Center for Pediatric Voice and Swallowing Disorders, Lucile Packard Children's Hospital Stanford, Stanford University, Palo Alto, California, U.S.A. |