The sapphire, together with the ruby, are members of the corundum group, which is the mineralogical name for aluminium oxide that crystallised into gemstones a long time ago as a result of pressure and heat at a great depth.
Vascular Neurology Doctors and Physicians (Vascular Neurologists) Vascular neurology is the study and treatment of vascular diseases of the nervous system. A neurologist is a physician who diagnoses and treats nervous system disorders. A vascular neurologist treats patients who have disorders of the veins and arteries in the nervous system. Diseased vessels that provide circulation to the nervous system can generate problems such as a stroke or hemorrhage that affects the brain or spinal cord.
Stroke and vascular neurology focuses on vascular disorders that can lead to ischemic stroke, intracranial hemorrhage, and spinal cord ischemia and hemorrhage. The practice of stroke and vascular neurology requires an interdisciplinary approach that. incorporates knowledge of relevant aspects of basic science, epidemiology, clinical neurology, diagnostic and interventional radiology, neurosonology, cerebral blood flow/metabolism,