Radiotherapy improves the outlook for patients older than 1 year with Pediatric Oncology Group stage C neuroblastoma. - Castleberry,R.P.; Kun,L.E.; Shuster,J.J.; Altshuler,G.; Smith,I.E.; Nitschke,R.; Wharam,M.; McWilliams,N.; Joshi,V.; Hayes,F.A. (J Clin Oncol, 1991)