TY  - RPRT
TI  - Visual acuity and its measurement.
AU  - Christoph Kniestedt
AU  - Robert L Stamper
PY  - 2003
DO  - 10.1016/s0896-1549(03)00013-0
UR  - https://pubmed.ncbi.nlm.nih.gov/12809155/
ID  - 12809155
ER  -