Heidari, A., S. Hashemi, M. Parsa mahjoob, and A. N. Jadbabaei. “Hemorrhagic Pericardial Effusion Leading to Cardiac Tamponade, As Presenting Feature of COVID-19 in a Young Man: A Case Report”. Acta Bio Medica Atenei Parmensis, Vol. 91, no. 4, Nov. 2020, p. e2020146, doi:10.23750/abm.v91i4.10183.