The Publisher regrets that this article is an accidental duplication of an article that has already been published in Injury, 50(2) 2019 365–368, https://doi.org/10.1016/j.injury.2018.12.014. The duplicate article has therefore been withdrawn. The full Elsevier Policy on Article Withdrawal can be found at https://www.elsevier.com/about/our-business/policies/article-withdrawal.
Keywords: Concussion; Fracture; Prevention; Riding injuries; Risk factors; Trauma.
Copyright © 2018 Elsevier Ltd. All rights reserved.