Dessy, Luca A., et al. “The Double Opposing ‘Y’ Technique for Umbilical Reconstruction After Omphalectomy”. Annali Italiani Di Chirurgia, vol. 82, no. 6, Nov. 2011, pp. 505-10, https://annaliitalianidichirurgia.it/index.php/aic/article/view/3086.