- Correspondence to Dr Juan Jaime Miranda, CRONICAS Centre of Excellence in Chronic Diseases, Universidad Peruana Cayetano Heredia, Av. Armendáriz 497, Miraflores, Lima 18, Peru;
- Received August 3, 2017
- Revised November 3, 2017
- Accepted November 6, 2017
- First published January 11, 2018.
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