title: Erratum to: behavioral economics of food reinforcement and the effects of prefeeding, extinction, and eticlopride in dopamine D₂ receptor mutant mice.
authors: Department of Psychiatry and Behavioral Sciences, Division of Behavioral Biology, Johns Hopkins University, Ross 469, 720 Rutland Ave, Baltimore, MD, 21205, USA, psoto@jhmi.edu.
authors: Paul L
authors: PL
authors: Soto
authors: David K
authors: DK
authors: Grandy
authors: Steven R
authors: SR
authors: Hursh
authors: Jonathan L
authors: JL
authors: Katz