共 10 条
- [1] AINAMO J, 1982, INT DENT J, V32, P281
- [3] Clerehugh V, 1984, Community Dent Health, V1, P33
- [5] GLAVIND LEIF, 1967, J PERIODONTAL RES, V2, P180, DOI 10.1111/j.1600-0765.1967.tb01887.x
- [6] MORRISON DF, 1967, MULTIVARIATE STATIST, P117
- [8] Ramfjord S. P., 1974, J PERIODONT RES S14, V9, P78
- [9] Ramfjord SP, 1959, J PERIODONTOL, V30, P51, DOI DOI 10.1902/JOP.1959.30.1.51
- [10] RUSSELL A. L., 1956, JOUR DENTAL RES, V35, P350, DOI 10.1177/00220345560350030401