Bishop EH. Pelvic scoring for elective induction. Obstet Gynecol. 1964;24:266-268.
Laughon SK, Zhang J, Troendle J, Sun L, Reddy UM. Using a simplified Bishop score to predict vaginal delivery. Obstet Gynecol. 2011;117(4):805-811.
Bishop Score for Vaginal Delivery and Induction of Labor
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