title: Serum sodium and calcium and body temperature during prolonged exercise.
mesh_terms: D000328:Adult; D001831:Body Temperature; D002118:Calcium / Q000097:blood*; D006801:Humans; D008297:Male; D008875:Middle Aged; D005082:Physical Exertion; D012964:Sodium / Q000097:blood*
chemical_list: D012964:Sodium; D002118:Calcium