Carrillo-Larco, R M
Bernabé-Ortiz, A
Pillay, T D
Gilman, R H
Sanchez, J F
Poterico, J A
Quispe, R
Smeeth, L
Miranda, J J
Article History
Received: 23 January 2015
Revised: 3 July 2015
Accepted: 20 July 2015
First Online: 31 July 2015
Competing interests
: The authors declare no conflict of interest.