Retinol^6H post dose:MCnc:Pt:Ser/Plas:Qn
retinol^6h post dose:mcnc:pt:ser/plas:qn
Retinol^6 hours post dose:Mass Concentration:To identify measures at a point in time:Serum/Plasma:Quantitative
retinol^6 hours post dose:mass concentration:to identify measures at a point in time:serum/plasma:quantitative