EXHIBIT ID: AB_C_0059

Esophagogastroduodenoscopy (EGD or Upper Endoscopy)

Esophagogastroduodenoscopy (EGD or Upper Endoscopy)

An esophagogastroduodenoscopy (EGD or upper endoscopy) procedure is used to examine the lining of the esophagus, stomach, and duodenum. It can also be used to procure a tissue biopsy.