@misc{indiciae0285a0809326, title = {Retinal light exposure from operation microscopes.}, author = {J L Calkins and B F Hochheimer}, year = {1979}, doi = {10.1001/archopht.1979.01020020579017}, url = {https://pubmed.ncbi.nlm.nih.gov/518390/}, note = {Source identifier: 518390} }