*Corresponding author: Juana del Valle Mendoza, Universidad Peruana de
Ciencias Aplicadas, Avenue San Marcos cdra, Cedros de Villa, Lima, Peru.
Tel: +51 13133333 Annex 2704
Fax: +51 13496025
E-mail: jdelvall@upc.edu.pe
Peer review under responsibility of Hainan Medical University.