Affiliation: | aRadiation Oncology, Hospital Universitario de Salamanca, Ps. San Vicente 58, 37007 Salamanca, Spain;bNuclear Medicine, Clínica Universidad de Navarra, Pamplona, Spain;cMedical Physics Department and Radiological Protection, Galaria – Hospital do Meixoeiro – Complexo Hospitalario Universitario de Vigo, Vigo, Spain |