Sample size calculations: basic principles and common pitfalls
M. Noordzij(Amsterdam UMC Location University of Amsterdam), Kitty J. Jager(Amsterdam University Medical Centers), Giovanni Tripepi(Metabolism and Renal Physiology), Michael W.T. Tanck(Amsterdam UMC Location University of Amsterdam), Carmine Zoccali(Università Campus Bio-Medico), Friedo W. Dekker(Leiden University Medical Center)
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