1 Division of Nephrology, Hospital Obrero No 2-Caja Nacional de Salud, Cochabamba, Bolivia.
2 IIBISMED, Facultad de Medicina, Universidad Mayor de San Simón, Cochabamba, Bolivia.
3 Departments of Medicine and Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.
4 Department of Anesthesia and Perioperative Care, Division of Critical Care Medicine, University of California San Francisco, 521 Parnassus Avenue, San Francisco, CA, 94143, USA. Matthieu.legrand@ucsf.edu.