Andrew N. Wilner, MD; Ronald C. Petersen, MD, PhDDISCLOSURES Andrew N. Wilner, MD: Welcome to Medscape. I’m Dr Andrew Wilner. Today I have a special guest: Dr Ron Petersen. Dr Petersen is the lead author of a paper recently published in JAMA Neurology, entitled, “A New Framework for Dementia Nomenclature.” Welcome, Dr Petersen. Ronald C....