Having just interviewed myself at UW less than a week ago, it is definately more than "just be yourself". I 'd suggest being familiar and knowing what the problems in health care are today (I was was asked about this and it took about 30 min of the interview), different sides of this issue, and reading the UW bioethics site. If you don't do this preparation, it will be an uncomfortable experience. Definately be yourself -- PLUS do some preparation. Just my two cents! (Read SDN Interview Feedback if you haven't already.) You will most likely treated very nicely, but you will also most likely be asked tough questions! But it's really not bad if you're prepared.