The Royal College of Ophthalmologists' National Ophthalmology Database Study of vitreoretinal surgery: report 5, anaesthetic techniques.
Sallam AA, Donachie PH, Williamson TH, Sparrow JM, Johnston RL. The Royal College of Ophthalmologists' National Ophthalmology Database Study of vitreoretinal surgery: report 5, anaesthetic techniques. Br J Ophthalmol. 2016 Feb; 100(2):246-52.