Urea nitrogen^post dialysis/pre dialysis:MRto:Pt:Dial fld prt:Qn
urea nitrogen^post dialysis/pre dialysis:mrto:pt:dial fld prt:qn
Urea nitrogen^post dialysis/pre dialysis:MRto:Pt:Dial fld prt:Qn
urea nitrogen^post dialysis/pre dialysis:mrto:pt:dial fld prt:qn