NONPHARMACEUTICAL RIPENING OF THE UNFAVORABLE CERVIX AND INDUCTION OF LABOR BY A NOVEL DOUBLE BALLOON DEVICE OBSTETRICS AND GYNECOLOGY Blumenthal, P. D., Gaffikin, L. 1991; 77 (6): 967-968

View details for Web of Science ID A1991FN40100048

View details for PubMedID 2030880