title: Clinical trials: the gold standard for evaluation of therapy.
authors.forename: C L
authors.initials: CL
authors.lastname: Meinert
mesh_terms: D002986:Clinical Trials as Topic / Q000379:methods / Q000592:standards*; D005069:Evaluation Studies as Topic; D005128:Eye Diseases / Q000628:therapy*; D006801:Humans; D016032:Randomized Controlled Trials as Topic / Q000379:methods / Q000592:standards; D016896:Treatment Outcome