@misc{indiciae10522d8d8985,
  title = {Mental retardation.},
  author = {M W Weir},
  year = {1967},
  doi = {10.1126/science.157.3788.576},
  url = {https://pubmed.ncbi.nlm.nih.gov/6028925/},
  note = {Source identifier: 6028925}
}