Effects of the abnormal acceleratory environment of flight.
D000054:Acceleration; D000818:Animals; D006112:Gravitation; D006801:Humans; D009038:Motion; D009041:Motion Sickness / Q000517:prevention & control / Q000628:therapy; D011187:Posture; D013026:Space Flight; D014722:Vestibule, Labyrinth / Q000502:physiology