@misc{indiciae3df11761acf4, title = {Guidance for cerclage using transrectal sonography.}, author = {A C Fleischer and S Lombardi and D M Kepple}, year = {1989}, doi = {10.7863/jum.1989.8.10.589}, url = {https://pubmed.ncbi.nlm.nih.gov/2681832/}, note = {Source identifier: 2681832} }