@misc{indiciaec8d3de155ec9,
  title = {Twins--still our best method.},
  author = {E Kringlen},
  year = {1976},
  doi = {10.1093/schbul/2.3.429},
  url = {https://pubmed.ncbi.nlm.nih.gov/1034338/},
  note = {Source identifier: 1034338}
}