units all over the city there world trade center used units we use a cat scan to look at longs of first responders has a high incidence now of lung cancer and skin cancer as what we used to top dermatological evaluations for ultrasound is an amazing tool that doctor bard in othersn others hands has really evolved. and it's really useful in this too. arthel: i was going to ask your comment sounds really advanced and wondering how do you access that technology and isn't covered by health insurance? i'm sure people come as you pointed out maybe watching us, listening to us from a smaller market that perhaps may not have these technologies so what do they do in that case? >> ami bear down on that for a minutes. 911 aside when it comes to breast, ultrasound is usually important if a mammogram does not give you the answer. just this kind of ultrasound may be useful. but it may not be covered by insurance and sometimes we have to fight for that insurance