Authors: Michael G Voss; David D Cuthbertson; Mario M Cleves; Ping Xu; Carmella Evans-Molina; Jerry P Palmer; Maria J Redondo; Andrea K Steck; Markus Lundgren; Helena Larsson; Wayne V Moore; Mark A Atkinson; Jay M Sosenko; Heba M Ismail; DPT-1 and TrialNet Study Groups