highly significantP <0.0001
Model fit was determined with the final model retaining genotype (ordinal due to the graphed relationship observed in Figure 1a ), proline, alcohol use and the highly significant COMT -proline interaction ( P <0.0001).
Model fit was determined with the final model retaining genotype (ordinal due to the graphed relationship observed in Figure 1a ), proline, alcohol use and the highly significant COMT -proline interaction ( P <0.0001).