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Am J Occup Ther. 1982; 36(4):269. https://doi.org/10.5014/ajot.36.4.269a

Am J Occup Ther. 1982; 36(1):53. https://doi.org/10.5014/ajot.36.1.53

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Am J Occup Ther. 1981; 35(8):539. https://doi.org/10.5014/ajot.35.8.539b