Alterações de olfato. Relação com Alzheimer e Parkinson?

http://www.docguide.com/just-noticeable-difference-olfaction-discriminative-tool-between-healthy-elderly-and-patients-cognit?hash=f1ece68d&eid=23541&alrhash=3594fa-9d5457f9f887792f63312b3939b2bd0f