title: AN ASSESSMENT OF THE CIRCULATORY PROBLEM OF WEIGHTLESSNESS IN PROLONGED SPACE FLIGHT.
mesh_terms: D001775:Blood Circulation; D006801:Humans; D010827:Physiology; D011187:Posture; D013026:Space Flight; D014893:Weightlessness
keywords: BLOOD CIRCULATION; PHYSIOLOGY; POSTURE; REVIEW; SPACE FLIGHT; WEIGHTLESSNESS