1. Global status report on road safety 2018;World Health Organization,2018
2. Save lives: a road safety technical package;World Heal Organ,2017
3. General Assembly: Improving global road safety;U N,2020
4. An evidence-based review: Helmet efficacy to reduce head injury and mortality in motorcycle crashes: EAST practice management guidelines;MacLeod;J Trauma Acute Care Surg,2010
5. Helmets for preventing injury in motorcycle riders;Liu;Cochrane Database Syst Rev,2008