1. Department of Microbiology and Biochemistry of Dairy Products Instituto de Productos Lácteos de Asturias‐Consejo Superior de Investigaciones Científicas (IPLA‐CSIC) Paseo Río Linares s/n 33300 Villaviciosa Asturias Spain
2. Molecular Genetics Laboratory Hospital Universitario Central de Asturias Oviedo Spain
3. Dermatology andHospital Universitario Central de Asturias Oviedo Spain
4. Department of Rheumatology Hospital Universitario Central de Asturias Oviedo Spain
5. Department of Dermatology Hospital Vital Álvarez‐Buylla Mieres Spain