1. Pathology Department, University Hospital Marques de Valdecilla, Avda. Marqués de Valdecilla s/n, 39008 Santander, Spain
2. Pathology and Molecular Pathology Unit, IDIVAL, Avenida Cardenal Herrera Oria s/n, 39011 Santander, Spain
3. Breast Unit, Gynecology Department, University Hospital Puerta del Mar. Av. Ana de Viya, 21, 11009 Cádiz, Spain
4. Surgery Department, University Hospital Marques de Valdecilla, Avda. Marqués de Valdecilla s/n, 39008 Santander, Spain
5. El Alisal Health Center, Cantabrian Health Service, C. los Ciruelos, 48, 39011 Santander, Spain