Orthostatic tolerance: salt, water and the autonomic nervous system.
D001341:Autonomic Nervous System / Q000502:physiology*; D006801:Humans; D011187:Posture / Q000502:physiology*; D012965:Sodium Chloride / Q000494:pharmacology*; D014867:Water / Q000378:metabolism*
D014867:Water; D012965:Sodium Chloride