An affiliation for the sixth author is missing. Steven Dakin is affiliated with: Institute of Ophthalmology, University College London and the Department of Optometry & Vision Science, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand.
Authors: Marc S Tibber; Elaine J Anderson; Tracy Bobin; Patricia Carlin; Sukhwinder S Shergill; Steven C Dakin Journal: PLoS One Date: 2015-02-17 Impact factor: 3.240