• Estimating total urea removal and protein catabolic rate by monitoring UV absorbance in spent dialysateUhlin, Nils Fredrik Arne; Fridolin, Ivo; Lindberg, Lars-Göran; Magnusson, MartinNephrology dialysis transplatation2005 / 11, p. 2458-2464 https://pubmed.ncbi.nlm.nih.gov/16077147/