1. Centro de Dermatologia Epidermis, Instituto CUF, Porto, Portugal;
2. Department of Plastic, Reconstructive and Aesthetic Surgery, Centro Hospitalar de São João, Porto, Portugal;
3. Deparment of Dermatology, Inselspital, University of Bern, Bern, Switzerland;
4. Dermatology Clinic Dermaticum, Freiburg, Germany;
5. CINTESIS – Center for Health Technology and Services Research, Porto, Portugal;
6. Basic and Clinical Immunology Unit, Department of Pathology, Faculty of Medicine, University do Porto, Portugal