Retroperitoneal emphysema after colonoscopic polypectomy.

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@article{Yassinger1978RetroperitonealEA, title={Retroperitoneal emphysema after colonoscopic polypectomy.}, author={S Yassinger and Robyn Midgley and Dr. Scott B. Cantor and Thierry Poirier and T J Imperato}, journal={The Western journal of medicine}, year={1978}, volume={128 4}, pages={347-50} }