title: A unique role for retrospective studies in clinical oncology.
authors.affiliation: Cancer Treatment Centers of America and Drexel University College of Medicine, Philadelphia, Pa., USA.
authors.forename: Maurie
authors.initials: M
authors.lastname: Markman
mesh_terms: D018262:Adenocarcinoma, Clear Cell / Q000188:drug therapy*; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000627:therapeutic use*; D005260:Female; D006801:Humans; D009364:Neoplasm Recurrence, Local / Q000188:drug therapy*; D010051:Ovarian Neoplasms / Q000188:drug therapy*