@misc{indiciae1a93a334233a,
  title = {Visual acuity testing with preferential looking in mental retardation.},
  author = {G Lennerstrand and A Axelsson and G Andersson},
  year = {1983},
  doi = {10.1111/j.1755-3768.1983.tb04353.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/6637424/},
  note = {Source identifier: 6637424}
}