@misc{indiciae2d01668d0981,
  title = {Lead, IQ and social class.},
  author = {D Bellinger and A Leviton and C Waternaux},
  year = {1989},
  doi = {10.1093/ije/18.1.180},
  url = {https://pubmed.ncbi.nlm.nih.gov/2722362/},
  note = {Source identifier: 2722362}
}