title: Low-dose caffeine physical dependence in normal subjects: dose-related effects.
authors.affiliation: Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland 21224.
authors.forename: S M
authors.initials: SM
authors.lastname: Evans
authors.forename: R R
authors.initials: RR
authors.lastname: Griffiths
mesh_terms: D002110:Caffeine / Q000008:administration & dosage / Q000494:pharmacology*; D004032:Diet; D004305:Dose-Response Relationship, Drug; D004311:Double-Blind Method; D006801:Humans; D019966:Substance-Related Disorders / Q000523:psychology*
chemical_list: D002110:Caffeine