@misc{indiciaec3c0dbf2d15a,
  title = {TWINAN: twin data analysis program for microcomputers.},
  author = {K W Kang},
  year = {1985},
  doi = {10.1017/s0001566000005018},
  url = {https://pubmed.ncbi.nlm.nih.gov/4050291/},
  note = {Source identifier: 4050291}
}