Letter to the editor deals with new diagnostic criteria of Alzheimer disease. For researchers in the field of AN arises a paradoxical situation, because during the four years they are submitted to two different diagnostic criteria.
Only time will tell which will be used more. Neither one of them does not address details (such as it should be assessed mediotemporálních size of structures in which it is the atrophy of the extent of vascular changes in the brain is still permissible for AN, and the concentration in the cerebrospinal fluid indicators suggest AN, etc.).
It is therefore a general framework, the refinement will be necessary in many studies.