Alberto E. Gonzáles-Ccoscco
Department of Oncology and Radiotherapy, Radiotherapy Service, Hospital Goyeneche, Arequipa; Department of Radiotherapy, Instituto Regional de Enfermedades Neoplásicas del Centro, Huancayo, JunÃn; School of Health Sciences, Radiation Physics Department, Professional Academic School of Medical Technology, Universidad Peruana Los Andes, Huancayo, JunÃn. Perú