title: Progressive-ratio performance maintained by drug infusions: comparison of cocaine, diethylpropion, chlorphentermine, and fenfluramine.
mesh_terms: D000818:Animals; D002745:Chlorphentermine / Q000494:pharmacology*; D003042:Cocaine / Q000494:pharmacology*; D003216:Conditioning, Operant / Q000187:drug effects*; D004053:Diethylpropion / Q000494:pharmacology*; D005277:Fenfluramine / Q000494:pharmacology*; D000882:Haplorhini; D008297:Male; D010215:Papio; D010645:Phentermine / Q000031:analogs & derivatives*; D012055:Reinforcement Schedule; D012646:Self Administration
chemical_list: D005277:Fenfluramine; D010645:Phentermine; D003042:Cocaine; D002745:Chlorphentermine; D004053:Diethylpropion