dr. peter hazelstein. good to have you here, why are so many people misdiagnosed? >> that's the question, gerri. what we have is the perfect storm, we have doctors under intense scrutiny in terms of how much money we spend on each patient, on every test. at the same time, the american population is aging rapidly. there are 10,000 new medicare patients every day, and these are the folks who have health care. and finally most of us were raised to at least not challenge or question doctors, and sometimes revere them. have you this combination of economic pressure on physicians and health care systems to reduce costs and aging population of patients who have health needs, and patients in general who don't want to question or push back on their doctors, and the result is a stunning number 1 out of 20 americans who visits doctor each year is misdiagnosed, and gerri, half of those, half of those, six million people have the potential to suffer serious harm from a delayed or misdiagnosis. gerri: dr. peter, that's what i was going to ask you about next. what are the potenti