TY - JOUR T1 - Severe aggravation and possible triggering of pemphigus vulgaris following COVID-19 vaccination: report of two cases JO - Anais Brasileiros de Dermatologia A1 - Irie, Kinuko A1 - Yamamoto, Toshiyuki SN - 0365-0596 UL - 10.1016/j.abd.2023.04.012 VL - 99 Y1 - 2024 PB - Brasil ER -