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Study follow‐up. DK, Denmark; GePaRD, German Pharmacoepidemiological Research Database; KfH QiN, Board of Trustees for Dialysis and Kidney Transplantation and its Quality in Nephrology programme; PHARMO, PHARMO Database Network; SE, Sweden; SNDS, Système National des Données de Santé (French National Health Care Insurance System Database, previously named SNIIRAM)
