共 26 条
[2]
ARMITAGE P, 1971, STATISTICAL METHODS
[5]
EVIAN CI, 1982, J PERIODONTOL, V53, P595, DOI 10.1902/jop.1982.53.10.595
[7]
HAFFAJEE AD, 1983, J CLIN PERIODONTOLOG, V10, P299
[9]
JENKINS WMM, 1988, J CLIN PERIODONTOLOG, V15