Institution: | 1. Department of Dermatology, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal;2. Department of Dermatology, Centro Hospitalar de Leiria‐Pombal, Leiria, Portugal;3. Department of Nephrology, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal;4. Department of Pathology, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal |