How many times have you seen it on TV or heard the ad that claims — 4 out of 5 doctors recommend a brand, a treatment or even a medical facility. But don't you ever wonder what that fifth doctor recommends?

If 80% of the doctors think one way, what do the other 20% think? And why don't we hear about that?

Here are the opinions of some of the top doctors in their fields, and the funny opinion of that one consenting opinion.