@misc{indiciaea3efd9bd7fdf,
  title = {Multiple pregnancy.},
  author = {D M Campbell},
  year = {1990},
  doi = {10.1016/s0950-3552(05)80215-9},
  url = {https://pubmed.ncbi.nlm.nih.gov/2205426/},
  note = {Source identifier: 2205426}
}