title: [How effective are drugs?--controlled drug trials are needed].
authors.forename: P J
authors.initials: PJ
authors.lastname: Pentikäinen
mesh_terms: D018849:Controlled Clinical Trials as Topic; D017277:Drug Approval; D004358:Drug Therapy / Q000592:standards*; D019317:Evidence-Based Medicine; D006801:Humans; D011364:Professional Practice; D012107:Research Design / Q000592:standards; D016896:Treatment Outcome
vernacular_title: Tehoavatko lääkkeet?--kontrolloituja lääketutkimuksia tarvitaan.