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Highlighted linkage analysis results for the derived factors on chromosomes 11 and 19. Note: The factors were adjusted for covariates and the Caucasian families were used. Factor 1: joint attention; factor 2: social interaction and communication; factor 3: non-verbal communication (rank transformed); factor 4: repetitive sensory-motor behaviour; factor 5: peer interaction; and factor 6: compulsion/restricted interests. LOD = logarithm of odds.
