Lange I R, Manning F A, Morrison I, Chamberlain P F, Harman C R
Am J Obstet Gynecol. 1985 Apr 15;151(8):1083-5. doi: 10.1016/0002-9378(85)90388-6.
Cord presentation was diagnosed antenatally in nine patients at term referred for fetal ultrasound assessment (incidence of 0.61%). Seven patients were delivered by cesarean section; cord position was confirmed in four and suspected in three patients. There were two vaginal deliveries, one following spontaneous version and the other a stillbirth associated with cord prolapse.
9名足月孕妇在接受胎儿超声评估时产前诊断为脐带先露（发生率为0.61%）。7例患者行剖宫产分娩；4例患者脐带位置得到确认，3例患者脐带位置疑似异常。有2例经阴道分娩，1例是自然回转后分娩，另1例是死产且伴有脐带脱垂。
