Total (panel A), dialytic (panel B), and renal (panel C) mass removal with APD (automated peritoneal dialysis) versus CAPD (continuous ambulatory peritoneal dialysis) for urea (0.1g/week), creatinine (CREA) (cg/week), UA (uric acid) (cg/week), P (phosphorus) (cg/week), β2M (beta-2-microlglobulin) (mg/week), HA (hippuric acid) (cg/week), IS (indoxyl sulfate) (mg/week), IAA (indole acetic acid) (0.1 mg/week), PCS (p-cresyl sulfate) (mg/week), free HA (cg/week), free IS (mg/week), free IAA (0.1mg/week), free PCS (mg/week), and TP (total protein) (0.1g/week).