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Joseph Goldberger, G. A. Wheeler, Edgar Sydenstricker, A Study of the Relation of Diet to Pellagra Incidence in Seven Textile-Mill Communities of South Carolina in 1916, Public Health Reports (1896-1970), Vol. 35, No. 12 (Mar. 19, 1920), pp. 648-713
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Goldberger et al. (1920) studied this question.
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