The Arthritis Society, Canada;University of Calgary;IWK Health Centre;The Hospital for Sick Children;McGill University Health Centre/Research Institute of the McGill University Health Centre;London Health Sciences Centre;University of Manitoba;Children's Hospital of Eastern Ontario;Alberta Children's Hospital;McMaster University;McMaster Children's Hospital;Université de Montréal;Royal University Hospital Foundation;Memorial University of Newfoundland The Arthritis Society, Canada;University of Calgary;IWK Health Centre;The Hospital for Sick Children ...