title: Extracellular fluid volume expansion in patients with posturally related syncope.
mesh_terms: D001342:Autonomic Nervous System Diseases / Q000503:physiopathology; D002908:Chronic Disease; D015444:Exercise; D005110:Extracellular Space / Q000378:metabolism*; D005440:Fluid Therapy; D006801:Humans; D010806:Physical Education and Training; D011187:Posture / Q000502:physiology*; D012890:Sleep / Q000502:physiology; D017673:Sodium Chloride, Dietary / Q000494:pharmacology; D013575:Syncope / Q000209:etiology* / Q000628:therapy*
chemical_list: D017673:Sodium Chloride, Dietary