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Nickell S, Hermann M, Essenpreis M, Farrell TJ, Krämer U, Patterson MS.Nickell S, et al. Among authors: farrell tj.Phys Med Biol. 2000 Oct;45(10):2873-86. doi: 10.1088/0031-9155/45/10/310.Phys Med Biol. 2000.PMID: 11049177
Hyde DE, Farrell TJ, Patterson MS, Wilson BC.Hyde DE, et al. Among authors: farrell tj.Phys Med Biol. 2001 Feb;46(2):369-83. doi: 10.1088/0031-9155/46/2/307.Phys Med Biol. 2001.PMID: 11229720