Subjects: Uterine Cervical Incompetence/Uterine Cervical Incompetence/Uterine Cervical Incompetence/*history; Animals ; Cerclage, Cervical
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Subjects: Pregnancy; Fertility, HumanMEDICAL / Gynecology & Obstetrics; HEALTH & FITNESS / Fertility & Infertility; MEDICAL / Oncology / General