共 10 条
- [1] NATIONAL TRENDS IN THE CERTIFIED CAUSES OF PERINATAL-MORTALITY, 1968 TO 1978 [J]. BRITISH JOURNAL OF OBSTETRICS AND GYNAECOLOGY, 1980, 87 (10): : 833 - 838
- [2] GUTTMACHER AF, 1958, OBSTET GYNECOL, V12, P528
- [3] HAWRYLYSHYN PA, 1982, OBSTET GYNECOL, V59, P463
- [5] KAUPPILA A, 1975, ACTA OBSTET GYN SCAN, P5
- [7] KOIVISTO M, 1975, ACTA OBSTET GYN SCAN, P21