@misc{indiciaee03e88b93569,
  title = {Social class and human twinning.},
  author = {B Bønnelykke},
  year = {1990},
  doi = {10.1017/s0021932000018745},
  url = {https://pubmed.ncbi.nlm.nih.gov/2401680/},
  note = {Source identifier: 2401680}
}