Beati, Federico, et al. “Non-Invasive Treatment of Sigmoid Volvulus in a Child. The Role of the Endoscopist”. Annali Italiani Di Chirurgia, vol. 93, no. 4, July 2022, pp. 443-6, https://annaliitalianidichirurgia.it/index.php/aic/article/view/2159.