TY - RPRT TI - Differentiation between opioid peptides by naltrexone. AU - A Z Rónai AU - I Berzétei AU - S Bajusz PY - 1977 DO - 10.1016/0014-2999(77)90281-3 UR - https://pubmed.ncbi.nlm.nih.gov/562763/ ID - 562763 ER -