@misc{indiciaef8b346a7bc32, title = {Retroperitoneal emphysema after colonoscopic polypectomy.}, author = {S Yassinger and R C Midgley and D S Cantor and T Poirier and T J Imperato}, year = {1978}, url = {https://pubmed.ncbi.nlm.nih.gov/664635/}, note = {Source identifier: 664635} }