共 15 条
[2]
LINDHE J, 1975, Journal of Clinical Periodontology, V2, P67, DOI 10.1111/j.1600-051X.1975.tb01727.x
[4]
PRICHARD JF, 1972, ADV PERIODONTAL DISE
[7]
RAMFJORD SP, 1977, INT DENT J, V27, P263