[1] Hosp Clin Barcelona, Dept Nephrol & Kidney Transplantat, 08036 Barcelona, Catalunya, Spain
[2] Inst Invest Biomed August Pi i Sunyer FRCB IDIBAPS, Fundacio Recerca Clin Barcelona, Lab Expt Nefrol & Trasplantament LENIT, Barcelona 08036, Catalunya, Spain
[3] Hosp Clin Barcelona, Biomed Diagnost Ctr CDB, Mol Biol CORE Lab, Barcelona 08036, Catalonia, Spain
[4] Red Invest Cooperat Orientada Resultados Salud RIC, Madrid 28014, Comunidad De Ma, Spain
[5] Hosp Clin Barcelona, Dept Urol, Barcelona 08036, Catalunya, Spain
[6] CareDx, San Francisco, CA 94080 USA
[7] Hosp Clin Barcelona, Dept Immunol, Barcelona 08036, Catalunya, Spain