Umberto Robustelli, Mauro Andreano, Maria Candida, Massimo Antropoli, Francesco Ambrosino, and Alessandro Esposito. 2018. “Analysis of the Factors Influencing the Outcome of Bleeding of the Lower Digestive Tract”. Annali Italiani Di Chirurgia 89 (3):212-16. https://annaliitalianidichirurgia.it/index.php/aic/article/view/1097.