Exactly Scott, we have many patients who are "snowbirds", spending the warmer months here in New England, the head down south for the winter. We have no idea of their transfusion history away from here, and often are not very reliable upon questioning as to where / when they were transfused. Other local patients seem to like trying out different hospitals (we have about 5 within 30 minutes of each other). We sometimes call them "shoppers".