@misc{indiciae94ef2ce9f04f, title = {Transcervical chorionic villus sampling.}, author = {R H Ward and B Modell and M Petrou}, year = {1987}, doi = {10.1016/0002-9378(87)90329-2}, url = {https://pubmed.ncbi.nlm.nih.gov/3826195/}, note = {Source identifier: 3826195} }