Longitudinal serum bicarbonate and mortality risk in older patients with advanced chronic kidney disease: analyses from the EQUAL cohort

Lombardi G, Chesnaye NC, Caskey FJ, Dekker FW, Evans M, Heimburger O, Pippias M, Torino C, Szymczak M, Drechsler C, Wanner C, Gambaro G, Stel VS, Jager KJ, Ferraro PM; EQUAL study investigators.