title: Dr Smillie and colleagues respond:.
authors.forename: Richard P
authors.initials: RP
authors.lastname: Smillie
authors.forename: Monisha
authors.initials: M
authors.lastname: Shetty
authors.forename: Andrew C
authors.initials: AC
authors.lastname: Boyer
authors.forename: Syed Zafar
authors.initials: SZ
authors.lastname: Fafri
authors.forename: Beatrice
authors.initials: B
authors.lastname: Madrazo
mesh_terms: D006801:Humans; D014652:Vascular Diseases / Q000175:diagnosis*; D014682:Vena Cava, Inferior