title: Letter to the Editor.
authors.affiliation: Department of Paediatric Surgery, Royal Manchester Children's Hospital, Manchester, UK. Electronic address: jawaid@nhs.net.
authors.forename: Wajid Bin
authors.initials: WB
authors.lastname: Jawaid
authors.affiliation: Department of Paediatric Surgery, Royal Manchester Children's Hospital, Manchester, UK.
authors.forename: Sarah L
authors.initials: SL
authors.lastname: Almond
authors.affiliation: Department of Paediatric Surgery, Royal Manchester Children's Hospital, Manchester, UK.
authors.forename: Nicholas
authors.initials: N
authors.lastname: Lansdale
authors.affiliation: Department of Paediatric Surgery, Royal Manchester Children's Hospital, Manchester, UK.
authors.forename: Basem
authors.initials: B
authors.lastname: Khalil
authors.affiliation: Department of Paediatric Surgery, Royal Manchester Children's Hospital, Manchester, UK.
authors.forename: Antonino
authors.initials: A
authors.lastname: Morabito