Absolute and relative serum fatty acid levels over time
We visualized the fatty acid data for the cohort as a whole in heatmaps to further explore postnatal level changes. This showed prominent pattern differences when levels were expressed in relative (mol%, Clustering the different fatty acids according to their postnatal level changes (Concerning the absolute quantification, no cluster showed a decrease after birth; five clusters included fatty acids that increased in concentration until at least postanatal day 3–7 (To further explore differences between relative and absolute quantification, we calculated the percent change in AA and DHA from cord blood to postnatal time points (