1. A second census of dental conditions in University of Minnesota freshman students;Brekhus;J.A.D.A.,1941
2. Dental caries and permanent tooth extraction; a study by age, sex, and location of the incidence of first permanent molar extraction in 8,677 school children;Cheyne;J.D. Res.,1940
3. A practical treatise on the diseases of the teeth intended as a supplement to the natural history of these parts;Hunter;London,1778
4. Transplantation of tooth germs;Kostecka;D. Record,1938
5. Editorial;Lancet,1941