Poulos C, Kinter E, Yang JC, Bridges JF, Posner J, Gleibner E, Muhlbacher A, Kieseier B. A discrete-choice experiment to determine patient preferences for injectable multiple sclerosis treatments in Germany. Ther Adv Neurol Disord. 2016 Mar;9(2):95-104. doi: 10.1177/1756285615622736.
McKenna SP, Doward LC. How should we measure quality of life in ankylosing spondylitis? Rheumatol Pract. 2008;6(2):12-4.