TY  - RPRT
TI  - The gradient filter test to assess amblyopia.
AU  - R V Keech
AU  - P J Kutschke
PY  - 1990
DO  - 10.1016/s0002-9394(14)76938-7
UR  - https://pubmed.ncbi.nlm.nih.gov/2368821/
ID  - 2368821
ER  -