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Difference in length at 3 years of age between children (n = 453) exposed to supplement during their entire lives and those measured at baseline in 1968: village level analysis. [Drawn from data in Habicht J-P, Martorell R, Rivera JA. 1995. Nutritional Impact of Supplementation in the INCAP Longitudinal Study: Analytic Strategies and Inferences. J Nutr 125(S4):S1042-S50.]
