Department of Surgery First Teaching Hospital of Tianjin University of Traditional Chinese Medicine Tianjin 300193 China;
Department of Surgery First Teaching Hospital of Tianjin University of Traditional Chinese Medicine Tianjin 300193 China;
Department of Surgery First Teaching Hospital of Tianjin University of Traditional Chinese Medicine Tianjin 300193 China;
Department of Surgery First Teaching Hospital of Tianjin University of Traditional Chinese Medicine Tianjin 300193 China;
Department of Endoscopy center Tianjin People''s Hospital Tianjin Union Medical Center Tianjin 300121 China;
Endoscopic papillary large balloon dilation; Small endoscopic sphincterotomy; Complete endoscopic sphincterotomy; Common bile duct stones; Mechanical lithotripsy; Endoscopic retrograde cholangiopancreatography;