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Body weight gain in male rats fed ad libitum (AL) or subjected to 15% caloric restriction (CR) from postnatal day 21 (experimental day 1) to postnatal day 75 (day 54 of the procedure). The points were fit with logistic growth curves. The asterisk indicates the start of statistically significant differences (p < 0.05) among the groups (all other successive comparisons met this criterion).
