Investigación original / Original research
Panam Salud Publica. 2016;39(1):38–43.
Regional Analysis. WPSAR Vol 7, No 2, 2016 | doi: 10.5365/wpsar.2015.6.4.010
Epidemiology, Control, and Financing
Western Pac Surveill Response J. 2014 Oct-Dec; 5(4): 34–46.
Published online 2014 Dec 18. doi: [10.5365/WPSAR.2014.5.4.007]