Sarda SP, Heyes A, Bektas M, Thankur T, Chao W, Intorcia M, Wronski S, Jones DL. Humanistic and economic burden of geographic atrophy: a systematic literature review. Clin Opththa. 2021 Dec 8;2021(15):4629-44.
McKenna S, Doward LC. Measuring quality of life in ankylosing spondylitis. Best Pract Res Clin Rheumatol. 2008 Jan 1;6(2):12-4.