PO-0642: Nomograms to assess the parotid gland dose in head and neck IMRT based on anatomical markers. (April 2015) - Castelli, J.; Simon, A.; Rigaud, B.; Henry, O.; Chajon, E.; Haigron, P.; Ospina Arango, J.D.; Vauleon, E.; Benezery, K.; De Crevoisier, R.