Low protein nitrogen appearance as a surrogate of low dietary protein intake is associated with higher all-cause mortality in maintenance hemodialysis patients.
Ravel VA, Molnar MZ, Streja E, Kim JC, Victoroff A, Jing J, Benner D, Norris KC, Kovesdy CP, Kopple JD, Kalantar-Zadeh K. Low protein nitrogen appearance as a surrogate of low dietary protein intake is associated with higher all-cause mortality in maintenance hemodialysis patients. J Nutr. 2013 Jul; 143(7):1084-92.