Hospital Associations include groups of hospitals interested in Rays’ services. Hospital groups typically already have on-site radiologists and their own radiology technical systems and are therefore generally interested in after-hours coverage, subspecialty reads, and occasionally additional on-site radiologist staffing. Rays is happy to offer volume discounts as an additional financial incentive for such groups. If the facilities are a member of a group buying organization with which Rays is affiliated, additional discounted service may be available.