@misc{indiciae2d7e674ee85c,
  title = {Twin growth problems: causes and sonographic analysis.},
  author = {S D Harrison and D R Cyr and R M Patten and L A Mack},
  year = {1993},
  doi = {10.1016/s0887-2171(05)80069-1},
  url = {https://pubmed.ncbi.nlm.nih.gov/8481267/},
  note = {Source identifier: 8481267}
}