共 12 条
[2]
ASOGWA SE, 1978, PUBL HLTH LONDON, V92, P245
[3]
BAIRD JD, 1975, SAE75081 SOC AUT ENG, P14
[4]
BAKO G, 1977, CAN J PUBLIC HEALTH, V68, P106
[5]
JAMIESON EG, 1966, MED J AUST, V2, P157
[6]
LEVI L, 1975, WORLD HLTH, P10
[8]
MCFARLAND RA, 1962, AM J MED ASS, V180, P289
[9]
OHANLON RH, 1980, ROY SOC HLTH J AUG, P144
[10]
RANKIN KH, 1967, CANAD MED ASS J, V97, P1364