title: Bioassay of N-sec-butylmorphine and N-alpha-methylnalorphine.
mesh_terms: D000818:Animals; D004353:Drug Evaluation, Preclinical; D008297:Male; D051379:Mice; D009020:Morphine / Q000037:antagonists & inhibitors; D009022:Morphine Derivatives / Q000494:pharmacology*; D009269:Nalorphine / Q000031:analogs & derivatives* / Q000494:pharmacology
chemical_list: D009022:Morphine Derivatives; D009020:Morphine; D009269:Nalorphine