"PMC7228731" . "Elsevier; Medline; PMC" . "2020-05-15"^^ . . "10.1016/j.clindermatol.2020.05.017" . . "In Memoriam: Physicians Who Have Died of COVID-19 in the United States()" . . . . "32425324" . "Clin Dermatol" . "Hoenig, Leonard" . "32425324" . . . "no-cc" . .