title: Placebo methylphenidate tablets.
authors.forename: M F
authors.initials: MF
authors.lastname: Richards
mesh_terms: D006801:Humans; D008774:Methylphenidate / Q000600:supply & distribution*; D010919:Placebos / Q000600:supply & distribution*
chemical_list: D010919:Placebos; D008774:Methylphenidate