de Araujo, D. B., D. V. Renck, M. A. de Britto, D. S. Oliveira, and F. T. Lauermann. “Emphysematous Cholecystitis: An Unusual Presentation of a Rare Disease”. McGill Journal of Medicine, vol. 8, no. 1, Dec. 2020, doi:10.26443/mjm.v8i1.379.