共 18 条
[2]
DIXON WJ, 1981, BMDP STATISTICAL SOF
[5]
GRONDAHL HG, 1979, SWED DENT J, V3, P109
[6]
HAUGEJORDEN O, 1982, 1981 SKAND TANNL C O, P70
[7]
HOWATT AP, 1977, J DENT RES, V56, P116
[8]
LAVSTEDT S, 1982, TANDTILLSTAND BEHOV, V7, P39
[9]
MILEMAN P, 1982, Community Dentistry and Oral Epidemiology, V10, P329, DOI 10.1111/j.1600-0528.1982.tb00404.x