PurposeTo assess the non-inferiority of pegfilgrastim versus filgrastim in speeding the recovery of polymorphonuclear cells (PMN) in pediatric patients who underwent autologous peripheral blood stem cell transplant (PBSCT). MethodsThe sample size of this randomized. multicenter. phase III study. https://www.spidertattooz.com/Alpha-Industries-X-Detroit-Tigers-Green-59FIFTY-Fitted-Hat/