title: On the use and abuse of X in the TNM classification.
authors.affiliation: Department of Surgery, Carolinas Medical Center, Charlotte, North Carolina.
authors.forename: Frederick L
authors.initials: FL
authors.lastname: Greene
authors.forename: James
authors.initials: J
authors.lastname: Brierley
authors.forename: Brian
authors.initials: B
authors.lastname: O'Sullivan
authors.forename: Leslie H
authors.initials: LH
authors.lastname: Sobin
authors.forename: Christian
authors.initials: C
authors.lastname: Wittekind
mesh_terms: D006801:Humans; D009362:Neoplasm Metastasis / Q000175:diagnosis; D009367:Neoplasm Staging / Q000592:standards / Q000706:statistics & numerical data; D009369:Neoplasms / Q000473:pathology; D017410:Practice Guidelines as Topic; D011237:Predictive Value of Tests; D011379:Prognosis; D012307:Risk Factors