Dr. Yeung is very popular and lots of kids visit him. He is very punctual, usually arrives at 9:15am. But he acts very fast, does not willing to listen to you. Each client usually stays in his room for 2 minutes.
Dr Yeung is my family doctor for over 10 yrs. I agree that is very punctual and acts very fast (normally around 2 minutes for general case) but I don't think he unwilling to listen you. However, the kid seldom need re-visit him (the kid could recover after 2 days drug). I experience that some doctor take over 10 minutes for consultation but need to visit him 2 or 3 times for one illness.