Ultra‐high frequency ultrasound in the differential diagnosis of oral pemphigus and pemphigoid: An explorative study. - Izzetti, Rossana; Nisi, Marco; Aringhieri, Giacomo; Vitali, Saverio; Oranges, Teresa; Romanelli, Marco; Caramella, Davide; Graziani, Filippo; Gabriele, Mario (Skin Research & Technology, 2021)