TY  - RPRT
TI  - Visual acuity testing in young children.
AU  - C G Keith
AU  - Z Diamond
AU  - A Stansfield
PY  - 1972
DO  - 10.1136/bjo.56.11.827
UR  - https://pubmed.ncbi.nlm.nih.gov/4647132/
ID  - 4647132
ER  -