共 20 条
[1]
CEDERLOFF R, 1976, RELATIONSHIP SMOKING
[2]
CLARKE EA, 1979, LANCET, V2, P1
[3]
COX DR, 1972, J R STAT SOC B, V34, P187
[4]
FLEISS JL, 1973, STATISTICAL METHODS
[6]
HIRAYAMA T, 1979, NATURALLY OCCURRING, P359
[7]
MANTEL N, 1959, J NATL CANCER I, V22, P719
[8]
NAGUIB SM, 1966, OBSTET GYNECOL, V28, P451