TY  - RPRT
TI  - A new astigmatic test chart.
AU  - A A EASTMAN
AU  - S K GUTH
PY  - 1958
DO  - 10.1097/00006324-195809000-00002
UR  - https://pubmed.ncbi.nlm.nih.gov/13571372/
ID  - 13571372
ER  -