TY  - RPRT
TI  - Testing visual acuity of children using vanishing optotypes.
AU  - E Fariza
AU  - J Kronheim
AU  - A Medina
AU  - O Katsumi
PY  - 1990
UR  - https://pubmed.ncbi.nlm.nih.gov/2079775/
ID  - 2079775
ER  -