Dr. Hubbard becomes your digital medical assistant in this interactive guide to what to do when you're wounded and there's no doctor to be found.When you get a bad injury, the usual advice is to call 911. But what if there is no 911? What if you're in another Hurricane Katrina, a terrorist attack or the aftermath of a tornado? The phone lines are down; the roads are blocked. You are the only help available.Most people wouldn't survive a bad wound...