Guanidinoacetate/Creatine:SRto:Pt:Ser/Plas:Qn
guanidinoacetate/creatine:srto:pt:ser/plas:qn
Guanidinoacetate/Creatine:Substance Ratio:To identify measures at a point in time:Serum/Plasma:Quantitative
guanidinoacetate/creatine:substance ratio:to identify measures at a point in time:serum/plasma:quantitative