title: [Patient maintains the generic drug is ineffective: is there an explanation for this?].
authors.forename: H S
authors.initials: HS
authors.lastname: Füessl
authors.forename: P
authors.initials: P
authors.lastname: Stiefelhagen
mesh_terms: D057915:Drug Substitution; D016568:Drugs, Generic / Q000627:therapeutic use*; D005858:Germany; D006801:Humans; D008774:Methylphenidate / Q000627:therapeutic use*; D017060:Patient Satisfaction; D013810:Therapeutic Equivalency
chemical_list: D016568:Drugs, Generic; D008774:Methylphenidate