![Research Commission of the American Dental Association Advisory Committee on Research in Dental Caries**Second open letter to all investigators, throughout the world, in the field of dental caries, November 17, 1938.]()
Research Commission of the American Dental Association Advisory Committee on Research in Dental Caries**Second open letter to all investigators, throughout the world, in the field of dental caries, November 17, 1938.Lynch, Daniel F.; Kettering, Charles F.; Gies, William J. · The Journal of the American Dental Association · 1939