1. Dermatology Division, Hospital Vital Alvarez Buylla, Mieres-Asturias, Spain
2. Gastroenterology Service, IBD Unit, Hospital Universitario Central de Asturias, Oviedo-Asturias, Spain
3. Ophthalmology Service, Hospital Universitario Central de Asturias, Oviedo-Asturias, Spain
4. Rheumatology Division, Department of Internal Medicine, Hospital Universitario Central de Asturias (HUCA), Av. Roma, s/n, Oviedo-Asturias, 33011, Spain