共 10 条
- [2] DAY CDM, 1949, J AM DENT ASSOC, V39, P572
- [3] GAD T, 1968, Journal of Periodontal Research, V3, P268, DOI 10.1111/j.1600-0765.1968.tb01929.x
- [5] HAMP SE, 1973, J PERIODONTAL RE S12, V8, P28
- [8] Lindhe J, 1970, Scand J Dent Res, V78, P471
- [9] SAXE SR, 1967, PERIODONTICS, V5, P217
- [10] SNEDECOR GW, 1967, STATISTICAL METHODS, P267