@misc{indiciae5e9a8b9201c6, title = {The immersible endoscope.}, author = {A E Hanwell}, year = {1983}, doi = {10.1016/s0140-6736(83)91123-6}, url = {https://pubmed.ncbi.nlm.nih.gov/6139699/}, note = {Source identifier: 6139699} }