This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Oesophagus, Subject name: Surgery
Dohlman's procedure is used in - 
Select and explain. 
A. Rectal prolapse, B. Esophagealachalasia, C. CAoesophagus, D. Zenker's diverticulum
D: Zenker's diverticulum
Answer: D: Zenker's diverticulum 
Explanation: Ans. is 'd' i.e., Zenker's diverticulum o Endoscopic Zenker's diverticulectomy is aka Dolmann's procedure.