Objective To study the relationship between fetalinfection and placental infection of HBV.
目的研究胎儿感染乙型肝炎病毒与胎盘感染之间的关系及其意义。
2
NT thickening is related to chromosomal syndromes closely, still to congenital heart disease, fetal abnormalities, anemia, infection factors.
NT增厚除了与染色体病密切相关外，还与先天性心脏病、胎儿畸形、贫血、感染等因素相关。
3
The duration of operation, difficulties in delivering fetal head, postoperative breaking wind, postoperative infection and postoperative morbidity of three groups were compared.