Parachute
https://parachute.ca/wp-content/uploads/2019/07/Alpine-Skiing-Return-to-Sport-Strategy.pdf
Concussion Awareness Training Tool (CATT)
/wp-content/uploads/2018/05/CATT-Retour-au-sport-V11.pdf
National Football League
https://www.nfl.com/playerhealthandsafety/resources/fact-sheets/nfl-head-neck-and-spine-committee-s-concussion-diagnosis-and-management-protocol