3,044
Participants
Start Date
July 22, 2003
Primary Completion Date
June 24, 2019
Study Completion Date
June 24, 2019
National Institutes of Health Clinical Center, Bethesda
National Rehabilitation Center for Persons with Disabilities Hospital, Saitama
NCEMB - University of Punjab, Lahore
National Institute on Deafness and Other Communication Disorders (NIDCD)
NIH