Answer:
Esophagogastroduodenoscopy.
Explanation:
Esophagogastroduodenoscopy is the specialized endoscope that are used to diagnose persistent nausea, unexplained anemia and inflammatory bowel diseases. The incision is not involved in this process.
This type of endoscopy helps in the visualization and examination of stomach, esophagus and the upper duodenum. The sore throat is experienced after this procedure. Some complication like bleeding may occur in this endoscopy.
Thus, the answer is esophagogastroduodenoscopy.
