I don't agree; acknowledging that you stutter is better that trying to pretend it's not there. I don't mean making a big deal out of it, but saying nothing is almost always worse in a situation like this. As far as your accent, I would acknowledge that too, but add that you plan to work with a voice coach (maybe a good idea) so that you can be more easily understood. Get that stuff out of the way and then talk about your passion for what I'd hope they want to hear -- helping people, science, figuring out hard problems, working hard -- all of that. (I would not, say anything about the social stuff. Screw that. Be passionate and authentic and leave it at that. You say you've heard they weed out socially awkward candidates? Well, then why have I met so many socially awkward doctors? Don't dwell on that; it's not relevant; you can be a good compassionate doctor without being a social butterfly.) I refuse to believe that having a stutter, an accent and less experience socially than others means you cannot be a good doctor. Right, THEY have to see that you feel this way as well: That's the key. And, yes, these are things that other candidates do not have to overcome. But others will have their own difficulties. I do not believe this is a deal breaker as long as you are clear that this is the path you truly want to take and you can communicate that to them. Go for it.