• Could urea in spent dialysate be a marker for monitoring removal of 4-pyridoxic acid?Kalle, Sigrid; Tanner, Risto; Arund, Jürgen; Tomson, Ruth; Luman, Merike; Fridolin, IvoXIII Baltic Nephrology Conference : October 13-15, 2016, Jurmala, Latvia : final programme2016 / p. 6 http://nefrologs.lv/wp-content/uploads/2016/10/XIII-BNC.pdf