@misc{indiciaebde6d5d48469, title = {An improved gonioscopic contact prism.}, author = {L ALLEN and A E BRALEY and H E THORPE}, year = {1954}, doi = {10.1001/archopht.1954.00920040461004}, url = {https://pubmed.ncbi.nlm.nih.gov/13137639/}, note = {Source identifier: 13137639} }