1. Department of Dermatology; Hospital Parc Taulí de Sabadell; Universitat Autonoma de Barcelona; Sabadell; Barcelona; Spain
2. Department of Pediatrics; Hospital Parc Taulí de Sabadell; Universitat Autonoma de Barcelona; Sabadell; Barcelona; Spain
3. Department of Dermatology Hospital Clínic; Universitat de Barcelona; Sabadell; Barcelona; Spain