@misc{indiciae6b1fe01c0937,
  title = {Twinning.},
  author = {J G Jackson},
  year = {1995},
  doi = {10.1111/j.1464-5491.1995.tb02089.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/8542747/},
  note = {Source identifier: 8542747}
}