Urea nitrogen/Creatinine:MRto:Pt:Body fld:Qn
urea nitrogen/creatinine:mrto:pt:body fld:qn
Urea nitrogen/Creatinine:Mass Ratio:To identify measures at a point in time:Body fluid, unsp:Quantitative
urea nitrogen/creatinine:mass ratio:to identify measures at a point in time:body fluid, unsp:quantitative