title: [Radioimmunoassay for dynorphin A 1-13].
mesh_terms: D000700:Analgesics / Q000032:analysis*; D000818:Animals; D001923:Brain Chemistry; D004399:Dynorphins / Q000032:analysis*; D008297:Male; D010446:Peptide Fragments / Q000032:analysis*; D011863:Radioimmunoassay; D051381:Rats
chemical_list: D000700:Analgesics; D010446:Peptide Fragments; C026843:dynorphin (1-13); D004399:Dynorphins