title: The authors reply.
authors.affiliation: Oslo University Hospital, Department of Medicine, Oslo, Norway.
authors.forename: Geir
authors.initials: G
authors.lastname: Mjøen
authors.affiliation: Norwegian University of Science and Technology, Institute of Cancer Research and Molecular Biology, St Olav's Hospital, Trondheim, Norway.
authors.forename: Stein
authors.initials: S
authors.lastname: Hallan
authors.affiliation: LUMC-Clinical Epidemiology, Leiden, The Netherlands.
authors.forename: Friedo W
authors.initials: FW
authors.lastname: Dekker
authors.affiliation: National Hospital, Oslo, Norway.
authors.forename: Hallvard
authors.initials: H
authors.lastname: Holdaas
mesh_terms: D005260:Female; D006801:Humans; D016030:Kidney Transplantation / Q000009:adverse effects*; D019520:Living Donors; D008297:Male; D020858:Tissue and Organ Harvesting / Q000009:adverse effects*