Hadjimarkos, D.M., and Storvick , C.A.: The Incidence of Dental Caries Among Freshman Students at Oregon State College, J. D. Res. 27: 299-304, 1948.
2.
Porter, K. 0., and Woods, E.: Decayed, Missing and Filled Teeth of Idaho-Born Fresh-men at the University of Idaho, Idaho Agr. Exp. Sta. Bull.284: 3, 1951.
3.
Wilcox, E.B. , Greenwood, D.A., and Galloway , L.S.: Dental Caries Experience of Some Freshman College Students in Utah, J. D. Res. 31: 844, 1952.
4.
Healy, H.J., and Cheyne, V.D.: Comparison of Caries Prevalence Between Freshman Students in Two Midwestern Universities, J. A. D. A. 30: 692-700, 1943.
5.
Massler, M., and Ludwick, W.: Relation of Dental Caries Experience and Gingivitis to Geographic Location and Size of Community in Males 17 to 21 Years Old, J. D. Res . 31: 313-318, 1952.
6.
Bodmer, E.: Caries Diagnosis, Ill. D. J. 9: 8-14, 1940.
7.
Burket, L.W. : The Accuracy of Clinical and Roentgenologic Diagnosis of Dental Caries as Determined by Microscopic Studies, J. D. Res. 20: 71-76, 1941.
8.
Hadjimarkos, D.M., Storviek, C.A., and Sullivan , J.H.: Dental Caries Experience Among Selected Population Groups in the State of Oregon, Oregon Agr. Exp. Sta. Bull. 19: 17, 1950.
9.
Deatherage, C.F., Wilson, L.A., and Ledgerwood , R.: Variability of Routine Diagnosis of Dental Defect in Children of School Age, J. A. D. A. 26: 1739-1748, 1939.