共 23 条
[2]
BAIRD KN, 1963, CANAD DENT A J, V29, P778
[3]
Bethart H, 1972, J Dent Educ, V36, P6
[4]
BREARLEY LJ, 1962, AM DENT AJ, V84, P600
[6]
CORRY RD, 1972, AM DENT AJ, V85, P1343
[7]
DOUGLASS C, 1976, J AM COLL DENT, V43, P144
[8]
Douglass C W, 1973, J Dent Educ, V37, P8