title: The authors reply.
authors.affiliation: Limerick, Ireland.
authors.forename: John
authors.initials: J
authors.lastname: Hogan
authors.forename: John C
authors.initials: JC
authors.lastname: Coffey
mesh_terms: D000230:Adenocarcinoma / Q000556:secondary*; D003110:Colonic Neoplasms / Q000473:pathology*; D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000000981:diagnostic imaging* / Q000556:secondary*; D008297:Male; D012004:Rectal Neoplasms / Q000473:pathology*; D014057:Tomography, X-Ray Computed