6Kilpatrick SJ.Maternal hydration increases arnniotic fluid index in women with normal fluid[J].Obstet Gynecol,1993,81:49.
7Flack NJ.Acute maternal oral hydration in trimester oligohydramnios:effects on amniotic fluid volume,utero-placental perfusion and fetal blood flow and urine output[J].Am J obstet Gynecol,1995,172:265.
8Flack NJ,Sepulveda W,Bower S,et al.Acute maternal oral hydration in trimaster oligohydramnios:effects on amniotic fluid volume,utero_placental perfusion and fetal blood flow and urine output.Am J Obstet Gynecol,1995;173:1186~1191
9Patrelli T S,Gizzo S,Cosmi E,et aI.Maternal hydration therapy im- proves the quantity of amniotic fluid and the pregnancy outcome in third-trimester isolated oligohydramnios:a controlled randomized institutional trial[J].J Ultrasound Med,2012,31(2):239- 244.