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 [Mass Ratio] in Peritoneal dialysis fluid --post dialysis/pre dialysis
urea nitrogen [mass ratio] in peritoneal dialysis fluid --post dialysis/pre dialysis