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Relationship checking in 269 HapMap samples (A), (C) and (E) are within-family relationship checking using three algorithms, and (B), (D) and (F) are between-family relationship checking using three algorithms. Negative kinship coefficient estimates are truncated to 0. Dashed lines indicate inference criteria as shown in Table 1. Solid lines follow the equation ϕ = (1 − π0)/4 that holds true for all relationships shown in Table 1, except for full sibs.
