"As with many interventions intended to prevent ill health, the effectiveness of parachutes has not been subjected to rigorous evaluation by using randomised controlled trials. Advocates of evidence based medicine have criticised the adoptionof interventions evaluated by using only observational data. We think that everyone might benefit if the most radical protagonists of evidence based medicine organized and participated in a double blind, randomised, placebo controlled, crossover trial of the parachute."
- Smith & Pell, 2003
Parachute use to prevent death and major trauma related to gravitational challenge: systemic review of randomised controlled trials
BSMPG: Where the Leaders Learn