ACE2 and COVID-19: While previous analysis relied primarily on contrasting the expression in cells with and without SARS-CoV-2 infection32, we made an attempt to separate the effect of the ACE2 receptor alone and the effect of SARS-CoV-2 in cells without ACE2 receptor to extract a more refined differential expression pattern of ACE2-mediated SARS-CoV-2 infection.