Costa, F.P., Costa, G., Carvalho, M.S., Moura, A.M., Pinto, R. and Torres, J. 2017. Long-Term Outcomes of the Calcaneo-Stop Procedure in the Treatment of Flexible Flatfoot in Children: A Retrospective Study. Acta Médica Portuguesa. 30, 7-8 (Aug. 2017), 541–545. DOI:https://doi.org/10.20344/amp.8137.