A tricky, difficult type of study to conduct, controlling all the factors, with very interesting results.

It's a very exciting first study, but there are still some things that need to be defined by a greater number of patients.

What has been demonstrated by this trial is that vitamin B-6 and folic acid are not helpful in preventing heart disease. The key message for people taking vitamins is to be careful -- you can overdo what you thought was beneficial.

I wouldn't (use it) based on the results of this trial.