Liz will need DNA from
affected dogs, clinical report from the veterinarian or neurologist who diagnosed, samples from normal siblings, parents, and
grandparents if possible, brief history
of clinical signs and disease progression, and necropsy report if available.
The
grandparents, normal full - or half - siblings
of the
affected dog and full siblings
of the parents should be DNA tested if they are to be used for breeding in order to determine their CEA status.