1. Nephrology Service, Hospital Universitario Puerta del Mar, Cádiz, Spain.
2. Nephrology Service, Hospital del Mar, Barcelona, Spain (National Network for Kidney Research RICORS2040 RD21/0005/0022).
3. Nephrology Service, Hospital Universitario Marqués de Valdecilla/IDIVAL, Santander, Spain.
4. Nephrology Service, Hospital Universitario Doctor Peset, Valencia, Spain.
5. Nephrology Service, Hospital Universitario Miguel Servet, Institute for Health Research Aragón, Zaragoza, Spain.
6. Nephrology Service, Hospital Universitario de Canarias, Santa Cruz de Tenerife, Spain.
7. Nephrology Service, Hospital Universitario La Paz, Madrid, Spain.
8. Nephrology Service, Hospital Universitario de Bellvitge, Barcelona, Spain.
9. Nephrology Service, Hospital Universitario de Cruces, Bilbao, Spain.
10. Organización Nacional de Trasplantes, Madrid, Spain.