[\'Department of Dermatology, Yale Department of Dermatology, Yale University, New Haven, Connecticut, USA.\', \'Department of Pathology, Yale Department of Dermatology, Yale University, New Haven, Connecticut, USA.\']
Perniosis during the COVID-19 pandemic: Negative anti-SARS-CoV-2 immunohistochemistry in six patients and comparison to perniosis before the emergence of SARS-CoV-2.