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This book is a report of a four year study by the Dental Research Club of Chicago, the author and other collaborators, which was carried out in the laboratories of the Otho A. Sprague Memorial Institute at the University of Chicago. Clinical observations were made on 500 patients sent to the investigators and 440 institutionalized children at Mooseheart, Ill. The latter group constituted material for the major study, which was divided into three periods: a control period, during which children were observed without altering conditions prevailing in the institution; a test period, in which certain of the previously observed children were given 16 ounces (473.18 cc.) of orange juice and the juice of one lemon daily, and a period of rechecking, in which only 3 ounces (88.7 cc.) of orange juice was administered in addition to the regular routine diet of the home. A detailed report of the findings at
Diet and Dental Health.. Am J Dis Child. 1934;48(6):1461. doi:10.1001/archpedi.1934.01960190281025