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    Endoscopic Fistulotomy – ‘The Suprapapillary Punch’: A Method of Access to the Bile Duct during ERCP by Noel B Hershfield

    Published 1994-01-01
    “…This report describes endoscopic fistulotomy or the suprapapillary punch that has been carried out at the Foothills Hospital in Calgary, Alberta, on 30 of 623 patients referred for ERCP for conditions causing obstruction of the common bile duct or suspected obstruction of the common bile duct. …”
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