@misc{indiciae29c6ae7f83a5, title = {Normative contrast sensitivity data for young children.}, author = {J E Scharre and S A Cotter and S S Block and S A Kelly}, year = {1990}, doi = {10.1097/00006324-199011000-00007}, url = {https://pubmed.ncbi.nlm.nih.gov/2250891/}, note = {Source identifier: 2250891} }