@misc{indiciae6c9d175cb491, title = {Needle knife sphincterotomy: a necessary tool.}, author = {I Katuscak and M Horakova and P Frlicka and V Straka and J Macko}, doi = {10.1016/s0016-5107(91)70798-0}, url = {https://pubmed.ncbi.nlm.nih.gov/1916183/}, note = {Source identifier: 1916183} }