[Ole Okie]

You mean four out of five dentists who recommend Trident gum to their patients who chew gum really don't recommend Trident gum at all?

Remember when 4 out of 5 doctors recommended Chesterfield cigarettes?

[Hemingway's Ghost]

Remember when 4 out of 5 doctors recommended Chesterfield cigarettes?

I think cocaine and heroin were also used at one time as very effective cough suppressants.