SP510SODIUM RESTRICTED DIET DURING CONSERVATIVE THERAPY IN PATIENTS WITH END-STAGE RENAL DISEASES (ESRD) MAY RESCUE RESIDUAL RENAL FUNCTION (RRF) FOR THE FIRST YEAR AFTER STARTING PERITONEAL DIALYSIS (PD). (18th May 2018) - Hiramatsu, Tetsuaki; Mizuno, Masashi; Nomori, Sumiyo; Sakata, Fumiko; Suzuki, Yasuhiro; Maruyama, Shoichi; Yasuhiko, Ito; Noguchi, Satoshi