Fractional excretion of urea:Ratio:XXX:Urine+Ser/Plas:Qn
fractional excretion of urea:ratio:xxx:urine+ser/plas:qn
Fractional excretion of urea [Ratio] in Urine and Serum or Plasma collected for unspecified duration
fractional excretion of urea [ratio] in urine and serum or plasma collected for unspecified duration