1. From the Division of Pediatric Otolaryngology (Young), the Department of Communicative Disorders (Johnson), and the Division of Ophthalmology (Mets), The Children's Memorial Medical Center; the Departments of Otolaryngology–Head and Neck Surgery (Young, Hain) and Neurology (Hain), Northwestern University Medical School; the Department of Communication Sciences and Disorders, Northwestern University (Johnson); and the Department of Ophthalmology, Northwestern University Medical Center (Mets); Chicago,...