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المؤلفون: Harold W. Alden, William H. Gilpatric, George A. Carr, R.S. Hopkins, F.K. Heazelton, Edward C. Mills, William R. Davis, Eugene McQuire, O.E. Jackson, L.M. Doss, W.E. Hocking, Alexander H. Reynolds, M.M. Printz, Hugo G. Fisher, J.G. Reid, D.M. Gallie, E.W. Elliot, E.M. Davies, Edward Kennedy, B.W. Weinberger, Ernest V. Madison
المصدر: The Journal of the American Dental Association (1922). 12:1406-1412