331
Participants
Start Date
March 31, 2009
Primary Completion Date
September 30, 2012
Study Completion Date
September 30, 2012
Both 2nd and 3rd doses on time
2nd dose late and 3rd dose on time
2nd dose on time and 3rd dose late
Both doses late
Chapel Hill Pediatrics, Chapel Hill
Duke Children's Primary Care, Durham
Durham Pediatrics, Durham
Lead Sponsor
Centers for Disease Control and Prevention
FED
Duke University
OTHER