There were no significant differences between the two groups with regard to the interval from the start of induction to vaginal delivery ( @ @ h in the vaginal group vs. @ @ h in the sublingual group ) , duration of active phase , Bishop Scores after @h , and rate of the vaginal delivery under @ h. Also , the rate of hyperstimulation , tachysystole , type of delivery , cause of cesarean section , Apgar scores less than @ and admission to the NICU were similar in these two groups .