TY  - RPRT
TI  - Visual acuity testing with preferential looking in mental retardation.
AU  - G Lennerstrand
AU  - A Axelsson
AU  - G Andersson
PY  - 1983
DO  - 10.1111/j.1755-3768.1983.tb04353.x
UR  - https://pubmed.ncbi.nlm.nih.gov/6637424/
ID  - 6637424
ER  -