Endoscopic ultrasound: an upper or reduced endoscopy using an ultrasound wand attached to the endoscope, which assists to visualise your biliary procedure. With 13 specialty groups and much more than 140 digestive disorder professionals on workers, the Division of Gastroenterology and Hepatology at Mayo Clinic is probably the largest and https://www.directivepublications.org/journal-of-gastroenterology-hepatology-and-endoscopy-research/