共 5 条
[1]
FINN SB, 1952, SURVEY LIT DENTAL CA, P119
[2]
FORSCHER BK, 1953, J DENT RES, V32, P646
[4]
FOSDICK LS, 1941, ILL DENT J, V10, P85
[5]
YOUDEN WJ, 1951, STATISTICAL METHODS, P119