共 21 条
[2]
CATON J, 1976, Journal of Clinical Periodontology, V3, P54, DOI 10.1111/j.1600-051X.1976.tb01850.x
[5]
Friedman N, 1958, J PERIODONTOL, V29, P98
[9]
LAWTHER GC, 1957, THESIS U MINNESOTA