i'm still in my 3rd undergrad year. im about to begin med school applications. My pre-med advisor brought up an interesting point....that some D.O. physicians can take an exam to become board certified as an M.D. upon completeing residency. I was just wondering how accurate is this data. I was also told that in a D.O. school you are required to fulfill 800 hours of manipulation per year. Can someone please verify and elaborate on the process of manipulation. thank you.