1. Helmets for preventing head and facial injuries in bicyclists;Thompson;Cochrane Database Syst. Rev.,1999
2. Risk factors for injuries from in-line skating and the effectiveness of safety gear;Schieber;N. Engl. J. Med.,1996
3. Queensland Government Wheeled recreational devices [Internet] 2013 http://www.tmr.qld.gov.au/Safety/Queensland-road-rules/Wheeled-recreational-devices.aspx
4. NSW Government Skateboards, foot scooters and rollerblades [Internet] 2013 http://roadsafety.transport.nsw.gov.au/stayingsafe/pedestrians/skateboardsfootscootersandrollerblades/#
5. Victorian Government Vic roads. Scooters & wheeled recreational devices [Internet] 2014 https://www.vicroads.vic.gov.au/safety-and-road-rules/road-rules/a-to-z-of-road-rules/scooters-and-wheeled-recreational-devices