2 Research Unit, Fundación Piel Sana AEDV, Madrid, Spain. ignacio.garcia.doval@sergas.es.
3 Department of Dermatology & Wound Healing, Division of Infection and Immunity, Cardiff University, University Hospital of Wales, 3rd Floor Glamorgan House, Heath Park, Cardiff, CF14 4XN, U.K.
4 Centro Studi GISED, Via Garibaldi 13/15, Azienda Ospedaliera papa Giovanni XXIII, 24100, Bergamo, Italy.
5 Betsi Cadwaladr University Health Board, Ysbyty Gwynedd, Penrhosgarnedd, Bangor, Gwynedd, LL57 2PY, U.K.