Additional file 2:  of Determinants of the urinary and serum metabolome in children from six European populations LauChung-Ho SiskosAlexandros MaitreLÊa RobinsonOliver AthersuchToby WantElizabeth UrquizaJose CasasMaribel VafeiadiMarina RoumeliotakiTheano McEachanRosemary AzadRafaq HaugLine MeltzerHelle AndrusaityteSandra PetravicieneInga GrazulevicieneRegina ThomsenCathrine WrightJohn SlamaRemy ChatziLeda VrijheidMartine KeunHector CoenMuireann 2018 Histograms of serum metabolite distributions. (PDF 111 kb)