共 10 条
[1]
Butler NR, 1963, PERINATAL MORTALITY
[2]
BUTLER NR, 1969, PERINATAL PROBLEMS
[3]
Geals M F, 1977, Health Bull (Edinb), V35, P248
[4]
Geals M F, 1977, Health Bull (Edinb), V35, P243
[5]
HOBBS MST, 1966, LANCET, V1, P761
[7]
TEW M, 1977, NEW SOC, V49, P120
[8]
1968, 1967 73 REG GEN ST 1
[9]
1951, CLASSIFICATION OCCUP
[10]
1977, MORTALITY STATIS DH1