@misc{indiciae684db5368279, title = {Complete external sphincterotomy: correlation between endoscopic observation and the anatomic sphincter.}, author = {D G Linker and E A Tanagho}, year = {1975}, doi = {10.1016/s0022-5347(17)59478-1}, url = {https://pubmed.ncbi.nlm.nih.gov/1117503/}, note = {Source identifier: 1117503} }