@misc{indiciaeea0e395d7277, title = {Second-trimester biochemical screening.}, author = {M I Evans and J E O'Brien and E Dvorin and H Harrison and T H Bui}, year = {2001}, doi = {10.1016/s0095-5108(05)70084-1}, url = {https://pubmed.ncbi.nlm.nih.gov/11499053/}, note = {Source identifier: 11499053} }