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First and second principal components of cohort genotypes
Principal components (PCs) were computed and projected to a 1000 Genomes reference using KING (Manichaikul et al.52). Colors indicate inferred genetic ancestry for the (A) 9,206 Philadelphia Neurodevelopmental Cohort (PNC) and (B) 10,318 Adolescent Brain Cognitive Development (ABCD) genotyped samples.
