Physical activity and nutrition among youth in rural, suburban and urban neighbourhood types. - Shearer, Cindy; Blanchard, Chris; Kirk, Sara; Lyons, Renee; Dummer, Trevor; Pitter, Robert; Rainham, Daniel; Rehman, Laurene; Shields, Chris; Sim, Meaghan (Canadian journal of public health = Revue canadienne de santé publique, 2012)