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Bland-Altman plot of extracellular fluid volume (ECF) as estimated per single- and multi-frequency (SF; MF) bioimpedance in patients randomized in the conventional (3 times per week hemodialysis; N=18) and the interventional (more frequent hemodialysis 6 times per week hemodialysis; N=17) arm at baseline [a) and b)] and 5 months [c) and d)] after randomization.
