Sphincterotomy, Transhepatic |
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| Sphincteroplasty, Transhepatic; Sphincteroplasties, Transduodenal; Sphincteroplasties, Transhepatic; Sphincterotomies, Transduodenal; Sphincterotomies, Transhepatic; Transduodenal Sphincteroplasties; Transduodenal Sphincteroplasty | |
| Surgery of the smooth muscle sphincter of the hepatopancreatic ampulla to relieve blocked biliary or pancreatic ducts. | |