BSD	Body Suspension Device
CMAS	Confederation Mondiale des Activites Subaquatiques
CM	Cologne method
CMO	Crew Medical Officer
CMRS	Crew Medical Restraint System
CPR	Cardiopulmonary Resuscitation
CD	Compression Depth
CR	Compression Rate
ER	Evetts–Russomano method
ESA	European Space Agency
ETI	Endotracheal Intubation
GA	General anesthesia
HS	Handstand method
ISS	International Space Station
LEO	Low-earth Orbit
NASA	National Aeronautics and Space Administration
PADI	Professional Association of Diving Instructors
OWD	Open Water Diver
RBH	Reverse bear hug method
RCT	Randomized Controlled Trial
SHM	Schmitz–Hinkelbein method
SSI	Scuba Schools International