лайнер финис мельница цемент измерение vega. Alzheimer disease Radiology Reference Article . Alzheimer disease (AD) is a common neurodegenerative disease, responsible for 6080% of all dementias, and imposing a significant burden on developed nations.It is the result of accumulation and deposition of cerebral amyloidβ (Aβ) and is the most common cerebral ...