Cheney has repeatedly refused to allow reporters to interview him or his doctors about his health, to name the numerous medications he admits to taking or even to say where on his heart his bypasses are located.

CNN: Heart Murmurs

It turned out I had a rare virus that had attacked the muscles in my heart and as a result, I ended up having major heart surgery -- bypasses of five arteries.

CNN: 'I'd be an invalid without this device'

But researchers in Atlanta this week for a meeting of the American College of Cardiology say they've discovered that patients given injections of a hormone can literally grow their own bypasses, offering an exciting new treatment option for those with heart disease.

CNN: Hormone allows heart patients to grow own bypasses