[1] Univ Sydney, Ctr Values Eth & Law Med, Sydney, NSW 2006, Australia
[2] Univ Sydney, Sydney Sch Publ Hlth, Sydney, NSW 2006, Australia
[3] Westmead Hosp, Blood & Marrow Transplant Unit, Sydney, NSW, Australia
[4] Univ New S Wales, Prince Wales Clin Sch, Sydney, NSW, Australia
[5] Prince Wales Hosp, Dept Nephrol, Sydney, NSW, Australia
[6] Univ Barcelona, TPM DTI Fdn, Barcelona, Spain
[7] Hosp Plana, Intens Care Unit, Villareal, Spain