@misc{indiciae67f9c8631748, title = {Lead and hyperactivity.}, author = {O David and J Clark and K Voeller}, year = {1972}, doi = {10.1016/s0140-6736(72)92534-2}, url = {https://pubmed.ncbi.nlm.nih.gov/4116603/}, note = {Source identifier: 4116603} }