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Optimal dilation time for combined small endoscopic sphincterotomy and balloon dilation for common bile duct stones: a multicentre, single-blinded, randomised controlled trial

Eus-guided Gallbladder DrainageBiliary TractSmall Endoscopic SphincterotomyOptimal Dilation TimeGastroenterologyBiliary DisorderSurgeryBalloon DilationInterventional EndoscopyMedicineRadiology