1. Nephrology Division, Honorio Delgado Regional Hospital, Arequipa, Peru.
2. Faculty of Medicine, San Agustin National University, Arequipa, Peru.
3. Pathology Division, Patologas AS SAC, Lima, Peru.
4. Nephrology Division, Arzobispo Loayza National Hospital, Lima, Peru.
5. Faculty of Medicine, Cayetano Heredia Peruvian University, Lima, Peru.