共 16 条
[2]
Bentley A N, 1967, J Ky Dent Assoc, V19, P13
[4]
CLARK EB, 1933, J AM DENT ASSOC, V20, P1065
[5]
Clark EB, 1931, J AM DENT ASSOC, V18, P2093
[6]
HAYASHI T, 1967, MED COLOR STANDARD 5
[10]
Preston J D, 1985, Quintessence Int, V16, P47

