共 23 条
[2]
ARMITAGE P, 1971, STAT METHODS MED RES, P116
[6]
KAUFMAN RH, 1973, CANCER RES, V33, P1446
[7]
KAWANA T, 1976, LANCET, V2, P964
[9]
LERNER AM, 1974, J INFECT DIS, V129, P623, DOI 10.1093/infdis/129.6.623
[10]
MERRELL M, 1955, J Chronic Dis, V1, P12, DOI 10.1016/0021-9681(55)90018-7