title: Staging designation for bilateral Wilms' tumours.
authors.forename: J B
authors.initials: JB
authors.lastname: Beckwith
mesh_terms: D006801:Humans; D009367:Neoplasm Staging; D009378:Neoplasms, Multiple Primary / Q000473:pathology*; D009396:Wilms Tumor / Q000473:pathology*