Hello. I was just wondering if you could be board certified and practice BOTH IM AND Gastro at the same time. Is this possible, legal? I mean, it seems like gastroenterologists don't practice IM once they become gastroenterologists. Is it possible to become board certified in both and practice both if I want to? After all, I would have to be in an IM residency if I would like to go into the gastroenterology... Thanks in advance!