1. Personal communication to C. A. Schlack;Knox,1942
2. Study by Age and Sex of the Incidence of Dental Caries in Over 12,000 Persons;Hollander;J. D. Res.,1939
3. Incidence of Dental Caries Among Aviation Cadets;Senn;Mil. Surg.,1943
4. Dental Caries: Prevalence Experience at Initial Examination and the Incidence of New Carious Lesions After a One-Year Interval in 1,047 Officers and Men of the United States Navy;Schlack;U. S. Nav. M. Bui.,1940
5. Personal communication to C. A. Schlack;Harvey,1939