@misc{indiciae210eff3fa16b,
  title = {Sleep-walking in twins.},
  author = {D B Malkoff and B A Mick},
  year = {1970},
  doi = {10.1016/s0140-6736(70)91434-0},
  url = {https://pubmed.ncbi.nlm.nih.gov/4195800/},
  note = {Source identifier: 4195800}
}