1. Research Centre of the Faculty of Health Sciences, Peruvian University of Applied Sciences, Lima, Perú
2. Department of Internal Medicine, “SANNA El Golf ” Clinic, Lima, Perú
3. Department of Neurosurgery, “SANNA El Golf ” Clinic, Lima, Perú
4. Department of Infectious Diseases, “SANNA El Golf ” Clinic, Lima, Perú