Statistical Analysis - Power and/or Sample Size Relation This pilot study on 12 patients will be considered as feasible if we can limit the mean radiation dose to one parotid and one transferred submandibular gland to less than 26Gy while giving a radiation dose of 60Gy to PTV 1 and 54 Gy to PTV 2 .We intend to report only the descriptive statistics related to incidence and severity of xerostomia.