ACE2 and Thromboembolism: Despite the fact that there is still some controversy regarding whether platelets express [45, 46] or do not express angiotensin-converting enzyme 2 (ACE-2) [47], a receptor for spike protein of SARS-Cov-2, thromboembolism was a common phenomenon in hospitalized COVID-19 patients [13], occurring with even higher prevalence than sepsis [48].