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Reed RB, Pueschel SM, Schnell RR, Cronk CE.Reed RB, et al. Among authors: pueschel sm.Appl Res Ment Retard. 1980;1(3-4):161-74. doi: 10.1016/0270-3092(80)90002-8.Appl Res Ment Retard. 1980.PMID: 6461293No abstract available.