The influence of dl-, d-, and l-amphetamine and d-methamphetamine on a fixed-ratio schedule.
D000661:Amphetamine / Q000494:pharmacology*; D000662:Amphetamines; D006801:Humans; D008694:Methamphetamine
D000662:Amphetamines; D008694:Methamphetamine; D000661:Amphetamine
AMPHETAMINE/pharmacology