Fatty Acid Profile of Plasma Non-esterified Fatty Acids pf 37; Nigerians, Compared with 98 Minnesota Controls. Open bars indicate no significant difference between groups; wide striations indicate p<0.05; narrow striations indicate p<0.01; and black bars indicate p<0.001. Bars to the left indicate experimental group values less than control group values. Bars to the right indicate experimental group values greater than control group values.