共 11 条
- [1] Bastiaan R J, 1976, Aust Dent J, V21, P308
- [4] COOPER KH, 1978, DENT CLIN N AM, V22, P373
- [5] NOLL CE, 1969, NORC2 NAT OP RES CTR
- [7] 1976, SURVEY HLTH PROFESSI
- [8] 1983, CANCER FACTS FIGURES, P14
- [9] 1979, DHEW PHS7950066 PUB
- [10] 1964, JADA, V69, P776