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Smoothed percentile curves for serum cobalamin concentrations according to age based on a sample of generally healthy participants from the LIFE Child study population. In total, there are 4229 observations from participants aged 2 months–18 years, single data points depicted. From bottom: 2.5th (P2.5), 10th (P10), 50th (P50, median), 90th (P90), 97.5th (P97.5) percentiles are marked. Smoothed percentiles produced with Cole’s LMS-type method.
