共 50 条
- [1] The cervix: an independent risk factor for preterm birth PRENATAL AND NEONATAL MEDICINE, 1998, 3 (01): : 106 - 108
- [6] Early preterm delivery due to placenta previa is an independent risk factor for a subsequent spontaneous preterm birth BMC Pregnancy and Childbirth, 12
- [8] Congenital anomalies are an independent risk factor for neonatal morbidity and perinatal mortality in preterm birth EUROPEAN JOURNAL OF OBSTETRICS GYNECOLOGY AND REPRODUCTIVE BIOLOGY, 2000, 90 (01): : 43 - 49
- [10] Prothrombotic mutations as a risk factor for preterm birth LANCET, 1999, 353 (9162): : 1411 - 1412