In this paper, in Table 4, the values for 20:3n-6 for kidney should read 1.0 _+ 0.2 for lean rats and 1.3 _+ 0.25 for obese rats (rather than 0.5 + 0.2 and 0.3 +_ 0.1), and for heart 0.3 _+ 0.1 for lean rats and 0.7-+ 0.2 c for obese rats (rather than 0.7 _+ 0.2 and 0.5 +_ 0.1). In Table 6, the obese/lean ratios for brain for the A6-desaturase index should be 1.25 (and not 0.80), and for the A5-desaturase index 0.75 (and not 1.32). Study on the Lipid Composition of Aging Fisher-344 Rat Lymphoid Cells: Effect of Long-Term Calorie Restriction Serge Laganiere and Gabriel Fernandes Lipicls 26, 472-478 (1991) In Table 2 of this paper, the value for 20:4 for long-term calorie restricted rats (LCR) at 12 months should be 17.98 _+ 0.61 (rather than 7.98 _+ 0.61). Similarly in Figure 3, upper right panel, the shaded LCR bar at 12 m for 20:4 should extend to 17.98 _+ 0.61 (rather than to 7.98 _+ 0.61).