1. Departamento de Tecnología Médica, Facultad de Ciencias de la Salud, Universidad de Tarapacá, Arica 1000000, Chile
2. Radiology Department, Faculty of Medicine, Complutense University, IdIS, San Carlos Hospital, 28040 Madrid, Spain
3. World Health Organization (WHO), 1202 Geneva, Switzerland
4. Pan American Health Organization (PAHO), Washington, DC 20037, USA
5. International Atomic Energy Agency (IAEA), 1220 Vienna, Austria
6. Luis Calvo Mackenna’s Hospital, AntonioVaras 360, Santiago 7500000, Chile