N-methylhistamine/Creatinine:SRto:Pt:Urine:Qn
n-methylhistamine/creatinine:srto:pt:urine:qn
N-methylhistamine/Creatinine:Substance Ratio:To identify measures at a point in time:Urine:Quantitative
n-methylhistamine/creatinine:substance ratio:to identify measures at a point in time:urine:quantitative