Moyamoya disease (MMD) is a chronic. occlusive cerebrovascular disease characterized by progressive stenosis at the terminal portion of the internal carotid artery and an abnormal vascular network at the base of the brain. Although its etiology remains unknown. recent genetic studies identified RNF213 in the 17q25-ter region as an important susceptibility gene of MMD among East Asian ... https://www.marcelovicente.com/product-category/express-tones-ash/