title: Comment on profitability analysis of a femtosecond laser system for cataract surgery using a fuzzy logic approach.
authors.affiliation: Department of Ophthalmology, Guy's and St. Thomas' NHS Foundation Trust, London SE1 7ET, UK; King's College London, London WC2R 2LS, UK.
authors.forename: Harry William
authors.initials: HW
authors.lastname: Roberts
authors.affiliation: Division of Surgery, Department of Surgery and Cancer, Imperial College London, St Mary's Hospital, London W2 1NY, UK.
authors.forename: Melody Zhifang
authors.initials: MZ
authors.lastname: Ni
authors.affiliation: Department of Ophthalmology, Guy's and St. Thomas' NHS Foundation Trust, London SE1 7ET, UK; King's College London, London WC2R 2LS, UK.
authors.forename: David Phillip S
authors.initials: DP
authors.lastname: O'Brart