Post ERCP Pancreatitis

• Endoscopy centre — Xi'an, Shaanxi, China
• Eastern Hepatobiliary Surgery Hospital,Endoscopy centre — Shanghai, Shanghai Municipality, China
• Endoscopy centre — Shanghai, Shanghai Municipality, China
• Endoscopy centre — Tianjin, Tianjin Municipality, China

Not specified

• Obstructive Jaundice Clinic in the National Liver Institute, Menoufia University , Shebin Elkoom — Menofia, Egypt

• Division of Gastroenterology, Department of Internal Medicine, Yonsei Institute of Gastroenterology, Yonsei University College of Medicine — Seoul, South Korea