Barut, B., Y. M. Bag, M. Patmano, E. Gundogan, A. Tuncer, Y. Dalda, F. Gonultas, and T. T. Sahin. “Management of Acute Cholecystitis in Elderly (≥65 Years Old) Patients: A Retrospective Study Comparing Early Versus Delayed Cholecystectomy”. Annals of Medical Research, vol. 30, no. 4, Apr. 2023, pp. 444-8, http://annalsmedres.org/index.php/aomr/article/view/4420.