Happonen, Ville, Heikki Kröger, Markku Kuismin, and Reijo Sund. 2022. “Ankle Fractures in Finland: 118,929 Operatively Treated Between 1987 and 2019”. Acta Orthopaedica 93 (February):327-33. https://doi.org/10.2340/17453674.2022.2071.