Sudmann, Einar, John K. Hald, and Bjørn Skandfer. “Features Resisting Primary Treatment of Congenital Club Foot”. Acta Orthopaedica 54, no. 6 (May 25, 1983): 850–857. Accessed May 3, 2026. https://actaorthop.org/actao/article/view/23674.