Say I'm a DO student who wants to get into cardiology, practicing in Fla. Fla. requires a DO internship. So, is it possible to do a DO internship and IM residency, and still get into an MD cards fellowship? The other option would be doing a dual accredited (AOA/ACGME) internship, and then an MD IM residency and cards fellowship. Of course there are DO residencies as well, but they're all in MI, OH and IL. One more question - why are MD cards programs called fellowships, and DO cards programs called residencies? Thanks in advance! I'm confused!