Buchan J C, Amoaku W, Barnes B, Cassels-Brown A, Chang B Y, Harcourt J, Shickle D, Spencer A F, Vernon S A, MacEwen C
International Centre for Eye Health, London School of Hygiene and Tropical Medicine, London, UK.
University of Nottingham, Academic Ophthalmology, Eye and ENT Centre, University Hospital QMC, Nottingham, UK.
Eye (Lond). 2017 Nov;31(11):1519-1522. doi: 10.1038/eye.2017.114. Epub 2017 Jun 16.