共 11 条
[1]
BAIRD TA, 1981, CMA J, V125, P1083
[3]
DAVID TJ, 1974, BRIT J PREV SOC MED, V28, P172
[5]
FRASER FC, 1980, LANCET, V2, P807
[7]
KNOX G, 1959, Br J Prev Soc Med, V13, P222
[9]
SCOTT JS, 1957, LANCET, V2, P569
[10]
SQUIRE EN, 1977, BD OAS, V13, P157