Authors: Scott W Hadley; Marc L Kessler; Dale W Litzenberg; Choonik Lee; Jim Irrer; Xiaoping Chen; Eduardo Acosta; Grant Weyburne; Wayne Keranen; Kwok Lam; Elizabeth Covington; Kelly C Younge; Martha M Matuszak; Jean M Moran Journal: J Appl Clin Med Phys Date: 2016-01-08 Impact factor: 2.102