共 19 条
- [1] Bakketeig LS, 1984, PERINATAL EPIDEMIOLO, P99
- [2] BUTLER NR, 1963, 1ST REPORT BRIT PERI, P14
- [3] CNATTINGIUS S, 1985, OBSTET GYNECOL, V66, P449
- [4] PREGNANCY OUTCOME AND SOCIAL-INDICATORS IN SWEDEN [J]. ACTA PAEDIATRICA SCANDINAVICA, 1984, 73 (01): : 69 - 74
- [5] FREDRICK J, 1978, BRIT J OBSTET GYNAEC, V85, P1
- [6] KARLBERG P, 1980, PERINATAL AUDIT SURV, P221