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
Ribeiro-Oliveira Jr A, Mol SS, Twiss J, Alencar GA, Miranda PA, Naves LA, Azevedo MF, Basilio FM, Boguszewski CL, Nogueira KC, Vilar L, Koltowska-Haggstrom M, McKenna SP. The brazilian version of the Quality of Life Assessment of Growth Hormone Deficiency in Adults (QoL-AGHDA): four-stage translation and validation. Arq Bras Endocrinol Metabol. 2010 Dec;54(9):833-41.