FP131CAUSES OF UNPLANNED DIALYSIS INITIATION: RESULTS OF THE NORDIC PERIDIALYSIS STUDY. (18th May 2018) - Heaf, James; Petersons, Aivars; Vernere, Baibar; Heiro, Maija; Povlsen, Johan V; Sørensen, Anette; Rosenberg, Mai; Løkkegaard, Niels; Kampmann, Jan; Clyne, Naomi; Randers, Else; Bumblyte, Inga; et al.