TY  - RPRT
TI  - Contrast sensitivity changes in background diabetic retinopathy.
AU  - P K Khosla
AU  - D Talwar
AU  - H K Tewari
PY  - 1991
UR  - https://pubmed.ncbi.nlm.nih.gov/2013027/
ID  - 2013027
ER  -