%0 Journal Article %T Evaluation of the dose distribution of half-beam abutted fields in head and neck cancer by film dosimeter and computer based planning system %A KÖYLÜ, M. %A YALMAN, D. %A OLACAK, N. %A OLACAK, İ. %A ARAS, A. %J Turk J Oncol %D 2013 %V 28 %P 016-022 %R