title: Drug addiction: bad habits add up.
authors.forename: T W
authors.initials: TW
authors.lastname: Robbins
authors.forename: B J
authors.initials: BJ
authors.lastname: Everitt
mesh_terms: D001921:Brain / Q000502:physiology*; D015984:Causality; D004298:Dopamine / Q000502:physiology*; D006801:Humans; D013287:Illicit Drugs; D007858:Learning / Q000502:physiology; D012008:Recurrence; D012701:Serotonin / Q000502:physiology; D019966:Substance-Related Disorders / Q000209:etiology*
chemical_list: D013287:Illicit Drugs; D012701:Serotonin; D004298:Dopamine