1. Unit of Infectious Diseases, Hospital Universitario 12 de Octubre; Instituto de Investigación Hospital 12 de Octubre; Madrid Spain
2. Department of Microbiology; Hospital Clínico Universitario, Instituto de Investigación Sanitaria INCLIVA, School of Medicine, University of Valencia; Valencia Spain
3. Department of Nephrology; Hospital Universitario Marqués de Valdecilla, Instituto de Formación e Investigación Marqués de Valdecilla (IFIMAV); Santander Spain
4. Department of Nephrology; Hospital Clinic, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS); Barcelona Spain
5. Department of Nephrology; Hospital Universitario Doctor Peset; Valencia Spain
6. Department of Nephrology; Hospital Universitario La Paz, Instituto de Investigación Hospital Universitario La Paz (IdiPAZ); Madrid Spain
7. Department of Nephrology; Hospital Universitario La Fe; Valencia Spain
8. Department of Nephrology; Clínica Universidad de Navarra; Pamplona Spain
9. Department of Nephrology; Hospital General Universitario; Albacete Spain
10. Department of Nephrology; Hospital Universitario Miguel Servet; Zaragoza Spain
11. Department of Nephrology; Hospital Universitario Puerta del Mar; Cádiz Spain
12. Department of Nephrology; Hospital Universitario Insular de Gran Canaria, Las Palmas de Gran Canaria; Spain
13. Department of Nephrology; Hospital Clínico Universitario San Carlos; Madrid Spain
14. Department of Nephrology; Hospital Universitario Ramón y Cajal; Madrid Spain
15. Department of Nephrology; Hospital Universitario de Salamanca; Salamanca Spain
16. Department of Nephrology; Hospital Universitario Reina Sofía; Córdoba Spain
17. Department of Nephrology; Fundación Jiménez Díaz; Madrid Spain