title: Reply.
authors.affiliation: Neurophysiology Department, Great Ormond Street Hospital, London, United Kingdom.
authors.forename: Nahla M
authors.initials: NM
authors.lastname: Alshaikh
authors.affiliation: Neurophysiology Department, Great Ormond Street Hospital, London, United Kingdom.
authors.forename: Jeimmy Pinzon
authors.initials: JP
authors.lastname: Martinez
authors.affiliation: Neurophysiology Department, Great Ormond Street Hospital, London, United Kingdom.
authors.forename: Matthew C
authors.initials: MC
authors.lastname: Pitt