共 7 条
- [1] Arnold FA, 1942, PUBLIC HEALTH REP, V57, P1599, DOI 10.2307/4584255
- [3] KEYES P. H., 1944, Journal of Dental Research, V23, P439, DOI 10.1177/00220345440230060501
- [4] Keyes Paul H., 1946, JOUR DENTAL RES, V25, P469, DOI 10.1177/00220345460250060701
- [7] Stephan Robert M., 1943, JOUR DENTAL RES, V22, P63, DOI 10.1177/00220345430220010801