Parachute use to prevent death and major trauma when jumping from aircraft: randomized controlled trial.
Yeh, Robert W, Linda R Valsdottir, Michael W Yeh, Changyu Shen, Daniel B Kramer, Jordan B Strom, Eric A Secemsky, et al. 2018. “Parachute Use to Prevent Death and Major Trauma When Jumping from Aircraft: Randomized Controlled Trial.”. BMJ (Clinical Research Ed.) 363: k5094.