van Schelven, H., S. Moerman, M. van der Steen, A. T. Besselaar, and C. Greve. “Prognostic Factors for Recurrent Idiopathic Clubfoot Deformity: A Systematic Literature Review and Meta-Analysis”. Acta Orthopaedica, vol. 93, Jan. 2022, pp. 11-28, doi:10.1080/17453674.2021.1982576.