Spaziani, Erasmo, Marcello Picchio, Annalisa Di Filippo, Francesco De Angelis, Giuseppe Marino, and Franco Stagnitti. “Gallstone Ileus. Report of Two Cases”. Annali Italiani di Chirurgia 81, no. 1 (January 1, 2010): 53–55. Accessed July 27, 2024. https://annaliitalianidichirurgia.it/index.php/aic/article/view/2789.