共 19 条
- [1] BARDEN TP, 1980, OBSTET GYNECOL, V56, P1
- [2] BRACERO L, 1986, OBSTET GYNECOL, V68, P654
- [4] BRAR HS, IN PRESS J REPROD ME
- [5] CAMPBELL S, 1983, LANCET, V1, P875
- [6] CREASY RK, 1980, OBSTET GYNECOL, V55, P692
- [9] PREVENTION OF PREMATURITY [J]. AMERICAN JOURNAL OF OBSTETRICS AND GYNECOLOGY, 1976, 126 (07) : 809 - 820
- [10] FETAL UMBILICAL ARTERY FLOW VELOCITY-TIME WAVEFORMS IN TWIN PREGNANCIES [J]. BRITISH JOURNAL OF OBSTETRICS AND GYNAECOLOGY, 1985, 92 (05): : 490 - 497