Lets say for ex. somebody goes to asia after high school to study medicine ( outside of the US people go to med school after high school), and lets say he finishes take the USMLE, fails the first time, passes the second, and then applies for residency but doesn't match. Would it be possible for this person to come back the US, and then apply to an american medical school so that he can get a better medical education and perhaps increase his chances at matching?