@misc{indiciae683d6366a8cc, title = {The gradient filter test to assess amblyopia.}, author = {M Nardi}, year = {1991}, doi = {10.1016/s0002-9394(14)76919-3}, url = {https://pubmed.ncbi.nlm.nih.gov/1985482/}, note = {Source identifier: 1985482} }