@misc{indiciae6d02eb9f0bfb,
  title = {Blood-lead levels, behaviour, and intelligence. A population study.},
  author = {R G Lansdown and J Shepherd and B E Clayton and H T Delves and P J Graham and W C Turner},
  year = {1974},
  doi = {10.1016/s0140-6736(74)92718-4},
  url = {https://pubmed.ncbi.nlm.nih.gov/4131977/},
  note = {Source identifier: 4131977}
}