1. Department of Pathology; Hospital Virgen de la Salud; Toledo Spain
2. Department of Pathology; Hospital Universitario Marques de Valdecilla; IDIVAL; Santander Spain
3. Department of Pathology; Hospital Universitario Son Espases; Palma de Mallorca Spain
4. Department of Pathology; Complejo Hospitalario Universitario Insular Materno Infantil; Las Palmas de Gran Canaria Spain
5. Department of Hematology; Hospital Universitario Marques de Valdecilla; IDIVAL; Santander Spain
6. Department of Pathology; University of Arizona; Tucson AZ USA