title: Letter: Variation of cyclic-A.M.P. excretion with urine volume.
mesh_terms: D002940:Circadian Rhythm; D000242:Cyclic AMP / Q000652:urine*; D004326:Drinking; D006801:Humans; D008297:Male; D014867:Water
chemical_list: D014867:Water; D000242:Cyclic AMP