Sex differences in the behavioral effects of 24-h/day access to cocaine under a discrete trial procedure.
D000818:Animals; D001519:Behavior / Q000187:drug effects*; D002940:Circadian Rhythm / Q000502:physiology; D019970:Cocaine-Related Disorders / Q000523:psychology*; D003216:Conditioning, Operant; D005260:Female; D008297:Male; D051381:Rats; D017207:Rats, Sprague-Dawley; D012055:Reinforcement Schedule; D012727:Sex Characteristics