title: Urinary excretion of material with beta-endorphin immunoreactivity.
mesh_terms: D004723:Endorphins / Q000652:urine*; D005260:Female; D006801:Humans; D008297:Male; D011863:Radioimmunoassay; D001615:beta-Endorphin
chemical_list: D004723:Endorphins; D001615:beta-Endorphin