TY - JOUR AU - Ivers R. AU - Hung D. AU - Stevenson Mark BT - Injury Prevention CN - Y LA - eng LB - injuryjournal M1 - 6 PY - 2006 SE - 1.401 SP - 409 EP - 13. [Impact Factor 1.401] ST - Inj Prev T2 - Injury Prevention TI - The prevalence of helmet use among motorcycle riders in Vietnam VL - 12 ER -