Global Refurbished CT Scanners Market Assessment, By Technology [High-Slice CT, Mid-Slice CT, Low-Slice CT, Cone-Beam CT], By Type [Certified Refurbished, Customized Refurbished], By Application [Cardiology, Oncology, Neurology, Orthopedics, Others], By End-user [Hospitals and Clinics, Diagnostic Imaging Centers, Ambulatory Surgical Centers, Others], By Region, Opportunities and Forecast, 2017-2031F