The study period was 1 year, divided into two consecutive
6-month time periods. The primary investigator
(first author), an orthopedic surgeon with extensive experience
with emergency tourniquet use, was the site
investigator for the first time period; the second author, a
registered nurse new to tourniquets, was the site investigator
for the second time period. The nurse was a founding
member of a deployed research team. Hospital providers
were replaced at the same time as the investigators.