EP-1820: On the use of deformable image registration to evaluate the need to perform ART in head and neck cancer. (April 2016) - Delgado-Tapia, P.; Lizondo, M.; Latorre-Musoll, A.; Jornet, N.; Eudaldo, T.; Carrasco, P.; Ruiz-Martinez, A.; Cases, C.; Ribas, M.