[heights]

Thanks to everyone who has been posting tremendously useful questions. However, huge favor to ask: if you're posting an NBME question, please put it in the title so that we know it's an NBME spoiler. Many of us will be using the NBME's to assess where we are, and if we do the questions here then the NMBE won't be an accurate predictor. If you post an NMBE question, just say so in the title (eg NBME 4 question) so that if we haven't done that test as yet we can choose not to do that question. Please don't mess up the NBMEs for those of us who haven't taken it yet!