Figure 4From: Surrogate phenotype definition for alcohol use disorders: a genome-wide search for linkage and associationComparison of nonparametric linkage and association test results for lnBQ, ERP-P and ERP-M on chromosome 2. LODs have been transformed to p-values by the relationship LOD = χ2df = 1/2ln(10) and plotted as a solid line. Dots represent family-based association test results.Back to article page