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Abbott AM, Portschy PR, Lee C, Le CT, Han LK, Washington T, Kinney M, Bretzke M, Tuttle TM.Abbott AM, et al. Among authors: portschy pr.Int J Radiat Oncol Biol Phys. 2013 Nov 1;87(3):494-8. doi: 10.1016/j.ijrobp.2013.06.2056.Int J Radiat Oncol Biol Phys. 2013.PMID: 24074922Clinical Trial.