Metodiev, D., et al. “Cardiac Hamartomas: Report of Two Rare Primary Cardiac Tumors (rhabdomyoma and Hamartoma of Mature Cardiomyocytes) With Review of the Literature”. Acta Medica Bulgarica, vol. 50, no. 2, June 2023, pp. 66-72, https://doi.org/10.2478/AMB-2023-0021.