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J. David Richardson, F. Douglas Scutchfield, Warren H. Proudfoot, Abram S. Benenson, Epidemiology of Gallbladder Disease in an Appalachian Community: Comparisons with the Framingham and Pima Indian Studies, Health Services Reports, Vol. 88, No. 3 (Mar., 1973), pp. 241-246
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Richardson et al. (1973) studied this question.
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