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Plot of the principal component analysis for the Kooperative Gesundheitsforschung in der Region Augsburg (KORA) and TwinsUK cohorts. The KORA cohort is shown in blue, while the TwinsUK cohort is shown in green. Principal component 1 (EV = 4.33712) was plotted against principal component 2 (EV = 1.15219) in these two cohorts.
