Genova, S., Pencheva, M. and Uchikov, P. (2023) “COMORBIDITY AND CAUSE OF DEATH IN THE DIFFERENT VARIANTS OF SARS-COV-2 VIRUS, WITH CONTRIBUTION OF 20 AUTOPSY CASES”, PROBLEMS of Infectious and Parasitic Diseases, 51(1), pp. 26–36. doi:10.58395/m27hv064.