Preparation of man for travel into space.
D000328:Adult; D000337:Aerospace Medicine; D007758:Ear, Inner / Q000503:physiopathology; D005118:Extraterrestrial Environment; D006801:Humans; D009041:Motion Sickness / Q000209:etiology; D009949:Orientation; D012665:Semicircular Canals / Q000503:physiopathology; D013026:Space Flight