0185-3325 0185-3325 S0185-33252020000200055 10.17711/sm.0185-3325.2020.008 Mexico Mexico 00 04 2020 00 04 2020 43 2 55 56 Armed Forces Health Surveillance Center 2012 19 9 9 2-6 Armed Forces Health Surveillance Center 2012 19 6 6 7-10 2013 35 1 1 45-9 2013 2013 30 10 10 893-5 2019 2 12 12 2013 30 10 10 896-7 2020 3 1 1 e1919935