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East, B.R., Am. J. Dis. Child., 61: 494, 1941.
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East, B.R., AND Pohlen,KurtJ., D. Res., 21: 125, 1942.
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East, B.R., J. D. Res., 21: 135, 1942.
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Hadley, F.P. , J. D. Res., 13 : 415,1933.
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Kaiser, Hilda , AND East, B.R., J. A. D. A., 27: 1430, 1940 .
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Klein, Henry, And Palmer, C.E., Pub. Health Rep., 53: 1685, 1938.
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Klein, H., Palmer, C.E., AND Knutson, J.W., Pub. Health Rep., 63: 751, 1938.
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Knutson, J.W. , Klein, H., AND Palmer, C.E., J. A. D. A., 25: 1923, 1938 .
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Munnblatt, M.A. , D. Cosmos, 76 : 592, 1933.
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Sloman,Ernest ,, J. A. D. A., 28: 441, 1941.
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Stoughton, A.L. , AND Meaker, V.T., Weekly Pub. Health Rep., 47: 26, (Part I) January, 1932.