A prospective cohort study of incident maintenance dialysis in children: An NAPRTC study11The North American Pediatric Renal Transplant Cooperative Study (NAPRTCS) is a voluntary collaborative effort comprising over 150 pediatric renal disease treatment centers in the United States, Canada, Mexico and Costa Rica. It is supported by major, unrestricted educational grants from Novartis, AMGEN, and Genentech. Participating NAPRTCS Centers are listed in the most recent NAPRTCS Annual Report Seikaly M, Ho PL, Emmet L, Tejani A: The 12th Annual Report of the North American Pediatric Renal Transplant Cooperative Study (NAPRTCS): Renal Transplantation from 1987 through 1998. Pediatr Transplant 5:215–231, 2001.