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Carroll SL, Greig CA, Lewis SJ, McMurdo ME, Sniehotta FF, Johnston M, Johnston DW, Scopes J, Mead GE.Carroll SL, et al. Among authors: johnston m, johnston dw.Arch Phys Med Rehabil. 2012 Mar;93(3):466-70. doi: 10.1016/j.apmr.2011.08.047.Arch Phys Med Rehabil. 2012.PMID: 22373934