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Betz RR, Mulcahey MJ, Smith BT, Triolo RJ, Weiss AA, Moynahan M, Keith MW, Peckham PH.Betz RR, et al. Among authors: peckham ph.J Am Paraplegia Soc. 1992 Oct;15(4):220-8. doi: 10.1080/01952307.1992.11761522.J Am Paraplegia Soc. 1992.PMID: 1431869
Miller LJ, Peckham PH, Keith MW.Miller LJ, et al. Among authors: peckham ph.IEEE Trans Biomed Eng. 1989 Jul;36(7):771-80. doi: 10.1109/10.32110.IEEE Trans Biomed Eng. 1989.PMID: 2787285