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Amer AM, Mackay RI, Roberts SA, Hendry JH, Williams PC.Amer AM, et al. Among authors: mackay ri.Radiother Oncol. 2001 Nov;61(2):143-50. doi: 10.1016/s0167-8140(01)00440-6.Radiother Oncol. 2001.PMID: 11690679