1. Medical Background of the Orthodontic Patient;Noyes;J.A.D.A.,1936
2. From tabulated data in the files of the American Dental Association.
3. Diet and Dental Health;Hanke,1933
4. Critical Study of Incidence of Dental Caries in Children;Munblatt;D. Cosmos,1933
5. Incidence of Caries;Leigh;Oral Hyg.,1924