Liu SY, Trope GE, Buys YM, El-Defrawy SR, Khan AM, Jin YP. Visual impairment and the Ontario disability support program. Can J Ophthalmol. 2020 Jun;55(3):212-20. doi: 10.1016/j.jcjo.2019.12.009
Wilburn J, Twiss J, Kemp K, McKenna SP. A qualitative study of the impact of Crohn's disease from a patient's perspective. Frontline Gastroenterol. 2017;8:68-73. doi: 10.1136/flgastro-2015-100678
Doward LC, Wilburn J, McKenna SP, Leicester R, Epstein O, Hedley V, Korala S, Twiss J, Jones D, Geraint M. Development and validation of the Bowel Cleansing Impact Review (BOCLIR). Frontline Gastroenterol. 2013 Feb;4(2):112-9. doi: 10.1136/flgastro-2012-100278