1. From the Department of Pathology (Nova-Camacho, Ruiz Díaz), Hospital Universitario Donostia, San Sebastian, Spain.
2. From the Laboratory of Molecular Pathology and Therapeutic Targets (Martin-Arruti), Hospital Universitario Donostia, San Sebastian, Spain.
3. From the Department of Pathology, Hospital Universitario de Navarra, Pamplona, Spain (Panizo-Santos).