Campbell Robert J, El-Defrawy Sherif R
Department of Ophthalmology, Queen's University, Kingston, Ont; Department of Ophthalmology, Hotel Dieu and Kingston General Hospitals, Kingston, Ont; Institute for Clinical Evaluative Sciences, Toronto, Ont.
Department of Ophthalmology, University of Toronto, Toronto, Ont; Department of Ophthalmology, Kensington Eye Institute, Toronto, Ont.
Can J Ophthalmol. 2016 Dec;51(6):397-399. doi: 10.1016/j.jcjo.2016.07.022. Epub 2016 Nov 11.