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Ma HI, Trombly CA, Tickle-Degnen L, Wagenaar RC.Ma HI, et al. Among authors: trombly ca.Am J Phys Med Rehabil. 2004 Jul;83(7):530-6. doi: 10.1097/01.phm.0000130032.97113.e0.Am J Phys Med Rehabil. 2004.PMID: 15213477