@misc{indiciaeb4c9e7d164f6, title = {Amniotic fluid AFP in multiple pregnancy.}, author = {M J Seller and J E Dumon and J S Vanderheyden}, year = {1977}, doi = {10.1136/bmj.1.6076.1600-b}, url = {https://pubmed.ncbi.nlm.nih.gov/68797/}, note = {Source identifier: 68797} }