?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=H&rft.au=Martin%2C+H&rft.aulast=Martin&rft.atitle=Endoscopic+biliary+therapy+in+the+era+of+bariatric+surgery&rft.date=24+February+2021&rft.title=Frontline+Gastroenterology&rft.genre=article