@misc{indiciaef505cea98b1e,
  title = {Multiple pregnancy: an international perspective.},
  author = {J J Sciarra and L G Keith},
  year = {1990},
  doi = {10.1017/s0001566000005274},
  url = {https://pubmed.ncbi.nlm.nih.gov/2085072/},
  note = {Source identifier: 2085072}
}