共 25 条
[1]
Bailit H L, 1978, Inquiry, V15, P359
[2]
BELOK G, 1977, J AM COLL HEALTH ASS, V25, P322
[3]
BENE AA, 1974, J CAN DENT ASSOC, V40, P444
[4]
BIRO PA, 1976, AUST DENT J, V21, P338
[5]
BLUM S, 1977, J AM COLL HEALTH ASS, V25, P327
[6]
DAVIES AR, R2711HHS RAND CORP
[7]
Fanning E A, 1973, Aust Dent J, V18, P20
[10]
KOSLOWSKY M, 1975, J PUBL HLTH DENT, V35, P170