共 6 条
- [1] BODECKER CF, 1931, D SURVEY, V7, P23
- [2] BOYD J. D., 1943, Journal of the American Dental Association, V30, P670
- [4] CHEYNE V. D., 1940, JOUR DENTAL RES, V19, P571, DOI 10.1177/00220345400190060801
- [5] KLEIN H., 1938, Public Health Reports, V53, P751, DOI 10.2307/4582532