1. James Cook University, Mackay Base Hospital Campus, School of Public Health, Tropical Medicine and Rehabilitation Sciences, Mackay, Queensland, Australia
2. Monash University, Monash Injury Research Institute, Australian Centre for Research into Injury in Sport and its Prevention, Clayton, Victoria, Australia
3. Columbia University, Mailman School of Public Health, Department of Sociomedical Sciences and Teachers College, Department of Health and Behavior Studies, New York, NY
4. Centers for Disease Control and Prevention, Division of Unintentional Injury Prevention, Atlanta, GA