Sudden incapacitation in flight, 1 Jan. 1966-30 Nov. 1971.
D000056:Accident Prevention; D000337:Aerospace Medicine; D003327:Coronary Disease / Q000453:epidemiology; D006306:Health Surveys; D006801:Humans; D006985:Hyperventilation / Q000453:epidemiology; D000860:Hypoxia / Q000453:epidemiology / Q000401:mortality; D009041:Motion Sickness / Q000453:epidemiology; D010468:Perceptual Disorders / Q000453:epidemiology; D013028:Space Perception; D014474:Unconsciousness / Q000453:epidemiology