people going to these conferences so some of our radiology colleagues go to a conference called RNA and if you think nips is big and very unmanageable our SNA has around 45 to 50,000 attendees in Chicago is apparently the only city in the world big enough to host this conference but one of the things which really happened this year or last year 2017 which is very interesting is normally if you go to these conferences you have a strand on x-ray stand on CT on molecular imaging it's basically all the different