M. Baltov, I. Bivolarski, I. Tsranchev, M. Gulinac, P. Dineva, and G. Ivanov, Trans., “A rare case of death from acute hemorrhagic necrosis of the pancreas after influenza infection”, Indian J Case Reports, vol. 3, no. 4, pp. 235–237, Nov. 2020, doi: 10.32677/IJCR.2017.v03.i04.022.