Jonsson, Brynjolfur, and Sven-Erik Larsson. “Hand Function and Total Locomotion Status in Rheumatoid Arthritis: An Epidemiologic Study”. Acta Orthopaedica 61, no. 4 (January 1, 1990): 339–343. Accessed June 22, 2026. https://actaorthop.org/actao/article/view/22413.