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Binford Chapman H., 1944, PUBL HEALTH REPTS, V59, P1363, DOI 10.2307/4585062
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Olson B. J., 1944, PUBL HEALTH REPTS, V59, P1373, DOI 10.2307/4585063
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Olson B. J., 1944, PUBL HEALTH REPTS, V59, P1299, DOI 10.2307/4585048
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OLSON BJ, 1944, PUB HLTH REP, V59, P1331