TY  - RPRT
TI  - Letter: The disc sensitivity test.
AU  - J Sherris
AU  - C Thornsberry
AU  - A L Barry
PY  - 1975
DO  - 10.1136/bmj.1.5950.149
UR  - https://pubmed.ncbi.nlm.nih.gov/803389/
ID  - 803389
ER  -