Abstract Background Vertigo. a highly prevalent disease. imposes a rising burden on the health care system. exacerbated by the ageing of the population; and further. https://www.roneverhart.com/Western-Digital-Ultrastar-DC-HC550-WUH721816ALE6L0-0F38460-16TB-7-2K-RPM-SATA-6Gb-s-512e-ISE-3-5in-Hard-Drive/