MON-PO367: Relevance of Baseline Nutritional Status on the Efficacy of a Fast-Track Nutritional Circuit in Head and Neck Cancer Patients Undergoing Radiotherapy: The Sooner the Better. (September 2019) - Gonzalez, M.; Villar, R.; Fernández, A.; Sifontes, M.A.; Pazos, M.; Martínez, M.Á.; Cantón, A.