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
Pierre Robbin’s Sequence includes all except ? 
Select and explain. 
A. Bilateral cleft lip, B. Airway obstruction, C. retrognathia, D. ASD
A: Bilateral cleft lip
Answer: A: Bilateral cleft lip 
Explanation: Pierre Robbin’s Sequence includes unilateral cleft lip.