title: Cervical incompetence and ultrasonic B-scan. A case report.
mesh_terms: D000026:Abortion, Habitual; D000328:Adult; D005260:Female; D005865:Gestational Age; D006801:Humans; D009119:Muscle Contraction; D010923:Placenta Previa / Q000150:complications / Q000175:diagnosis*; D011183:Postoperative Complications; D011247:Pregnancy; D013537:Sutures; D014463:Ultrasonography; D002581:Uterine Cervical Incompetence / Q000150:complications / Q000601:surgery; D014599:Uterus / Q000503:physiopathology