@misc{indiciaee42cd012a9b4, title = {The risks confronting twins: a national perspective.}, author = {W F Powers and J L Kiely}, year = {1994}, doi = {10.1016/s0002-9378(94)70211-x}, url = {https://pubmed.ncbi.nlm.nih.gov/8116697/}, note = {Source identifier: 8116697} }