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References
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Barker, F.J.
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Journal of the American Dental Association , 18 , p. 17 .
2.
Bibby, B.G.
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Journal of Dental Research , 12 , p. 99 .
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Boyd, J.D.
, AND
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Mcbeath, E.C.
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Rosebury, T.
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Rosebury, T.
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Karshan, M.
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Foley, G.
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Ibid. (in press).
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Japanese Journal of Experimental Medicine , 7 , p. 247 .
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Shibata, M.
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Personal communication to Dr. E. C. McBeath , Columbia University .
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Lancet , 2 , 218 .
