1. Nephrology Service, Hospital Civil de Guadalajara Fray Antonio Alcalde, Guadalajara, Jalisco, Mexico
2. Health Sciences Center, University of Guadalajara, Guadalajara, Jalisco, Mexico
3. Intensive Care Unit, Hospital Civil de Guadalajara Fray Antonio Alcalde, Guadalajara, Jalisco, Mexico
4. Division of Nutrition, NIN Institute, Guadalajara, Jalisco, México
5. Division of Nephrology, Hospital Obrero #2 – C.N.S, Universidad Mayor de San Simon School of Medicine, Cochabamba, Bolivia