Hypoxia warning--a new technique.
D000056:Accident Prevention; D000060:Accidents, Aviation; D004582:Electronics, Medical / Q000295:instrumentation*; D006801:Humans; D000860:Hypoxia / Q000517:prevention & control*; D008297:Male; D008991:Monitoring, Physiologic; D010092:Oximetry / Q000295:instrumentation*; D012119:Respiration