Mitchell, Piers, Martin Tisdall, and Hamid Zadeh. 2004. “Selective Botulinum Toxin Injection in the Treatment of Recurrent Deformity Following Surgical Correction of Club FootA Preliminary Report of 3 Children”. Acta Orthopaedica 75 (5):630-33. https://doi.org/10.1080/00016470410001538.