Macchini, Daniele, Angelo Guttadauro, Silvia Frassani, Matteo Maternini, and Francesco Gabrielli. 2016. “Pneumoretroperitoneum and Pneumomediastinum After Stapled Anopexy. Is Conservative Treatment Possible?”. Annali Italiani Di Chirurgia 87 (5):456-60. https://annaliitalianidichirurgia.it/index.php/aic/article/view/2368.