This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
Saggital split osteotomy was first advocated by 
Select and explain. 
A. Obwegesser, B. Dalpont, C. Wundrer, D. Moose
A: Obwegesser
Answer: A: Obwegesser 
Explanation: None