title: [Value of prospective studies in oncology].
mesh_terms: D004359:Drug Therapy, Combination; D006801:Humans; D008495:Medical Oncology; D009369:Neoplasms / Q000188:drug therapy / Q000628:therapy; D011446:Prospective Studies
vernacular_title: Zum Aussagewert prospektiver Studien in der Onkologie.