共 25 条
- [1] ADELSTEIN AM, 1976, STUDIES MED POPULATI, V31
- [2] [Anonymous], 1970, CLASSIFICATION OCCUP
- [3] ARMITAGE P, 1971, STATISTICAL METHODS
- [5] BROWN GW, 1978, LANCET, V1, P378
- [7] CHAMBERLAIN G, 1978, BRIT BIRTHS 1970, V2
- [8] CHAMBERLAIN R, 1975, BRIT BIRTHS 1970, V1
- [9] DOUGLAS JWB, 1958, CHILDREN 5
- [10] GOLDING J, UNPUB VALIDATION HIS