Aziret, Mehmet, et al. “Early and Long-Term Morbidity and Mortality Following Pancreaticoduodenectomy for Periampullary Tumors in Elderly Patients”. Annali Italiani Di Chirurgia, vol. 95, no. 2, Apr. 2024, pp. 235-4, doi:10.62713/aic.3380.