The best marketing for an endoscopy center is a satisfied patient who refers others and tells his primary care physician that his experience was a good one. We also market our practice through our patient education e-newsletter (go to writeOutLink("www.gihealth.com/newsletter/previous/063.html",1)) and our annual Christmas card. We've been doing the card for about six years now. It gets better and our mailing list gets bigger every year. People begin asking in October if they're going to get a card from us.