Negash Abdella, Mustefa, et al. “PRECONCEPTIONAL TRANSABDOMINAL CERVICAL CERCLAGE: CASE REPORT OF A WOMAN WITH SIX FAILED TRANSVAGINAL CERCLAGES ”. Ethiopian Journal of Reproductive Health, vol. 11, no. 3, Aug. 2019, p. 5, doi:10.69614/ejrh.v11i3.310.