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Chang YH, Good WF, Leader JK, Wang XH, Zheng B, Hardesty LA, Hakim CM, Gur D.Chang YH, et al. Among authors: leader jk.Med Phys. 2003 Jul;30(7):1805-11. doi: 10.1118/1.1582571.Med Phys. 2003.PMID: 12906198