Yes, of course doctors are impervious to marketing. That's why pharma sales reps are old ugly guys with degrees in chemistry and biology instead of ditzy ex college cheerleaders with fake tits and expense accounts that are 6 figures to start...and when is Toshi going to chime in about the comments he made that doctors choose procedures for patients based on how much profit they can make and not on the patients best interest? i know that my brother is pretty livid about being painted with that brush.