title: Endorphins in the pathogenesis of headache.
mesh_terms: D000328:Adult; D004723:Endorphins / Q000097:blood / Q000134:cerebrospinal fluid / Q000502:physiology*; D006261:Headache / Q000134:cerebrospinal fluid / Q000209:etiology*; D006801:Humans; D008881:Migraine Disorders / Q000209:etiology; D011863:Radioimmunoassay; D001615:beta-Endorphin
chemical_list: D004723:Endorphins; D001615:beta-Endorphin