@misc{indiciaee2fb40c45c5d, title = {Prenatal screening for Down's syndrome.}, author = {P M Gocze and A Arany and D A Freeman}, year = {1992}, doi = {10.1056/nejm199212313272712}, url = {https://pubmed.ncbi.nlm.nih.gov/1280772/}, note = {Source identifier: 1280772} }