Gracia Baena JM, Calaf Vall I, Zielonka M, Marsal Mora JR, Godoy P, Worner Diz F. Risk factors and comorbidities associated with severe aortic stenosis: a case-control study. Rev Clin Esp. 2021 May 23;221(5):249-57. doi: 10.1016/j.rce.2020.01.010.
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
Goyal RK, Williams DH, Sansgiry SS, Essien J. Awareness and perceived usefulness of the website designed to facilitate informed health insurance purchase decisions. TPHJ. 2010 Jul;62(3):8-11.