1 Research Unit, Fundación Piel Sana AEDV Madrid, Ferraz 100, 1° izda, Madrid, Spain.
2 Complexo Hospitalario Universitario de Vigo, Vigo Meixoeiro sn 36200, Vigo, Spain.
3 Department of Dermatology, Leiden University Medical Centre, Albinusdreef 2, 2333ZA, Leiden, the Netherlands.
4 Centre for Evidence Based Healthcare, School of Health Sciences, Faculty of Medicine and Health Sciences, The University of Nottingham, Nottingham, U.K.
5 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.