Australia's first autism biobank will open in Brisbane on Monday, paving the way for what researchers hope will lead to an earlier and more accurate diagnosis of the disorder.
Nearly 5,000 samples of blood, hair and urine, taken from autistic children, their parents and a control group, will be stored in freezers and could one day deliver the answers to what causes the condition.
Autism Queensland said parents typically raised concerns when their child was 12 months old, however in general they did not get diagnosed until at least two years later.