J R Nichols. Show Affiliations »
Abstract
Entities: Chemical
Mesh: See more » AnimalsBehavior, Animal/drug effectsConditioning, OperantDrinking BehaviorMorphine/pharmacologyRatsReinforcement, Psychology
Substances: See more » Morphine
Year: 1968 PMID: 5723799
Source DB: PubMed Journal: Res Publ Assoc Res Nerv Ment Dis ISSN: 0091-7443