TY  - RPRT
TI  - Observer experience and Cup:Disc ratio assessment.
AU  - S Hanson
AU  - S K Krishnan
AU  - J Phillips
PY  - 2001
DO  - 10.1097/00006324-200110000-00009
UR  - https://pubmed.ncbi.nlm.nih.gov/11700963/
ID  - 11700963
ER  -