Pedigrees of the 11 unrelated autistic patients and their affected (n = 2) and unaffected relatives carrying the ANXA1 duplication. Families 1–5 were part of the AGP whole genome study, while families 6–11 were identified in the follow-up study. All available relatives were tested for the ANXA1 duplication. Dup., individuals carrying the duplication. Untested, individuals for which no DNA sample was available.