1409-2433 1409-2433 S1409-24332020000100157 10.15517/rmta.v27i1.39966 Costa Rica Costa Rica 00 06 2020 00 06 2020 27 1 157 177

2016 1 1 1 Centers for Disease Control and Prevention. 1998 150 2 2 131-51 1999 38 3 3 220-40 1997 35 5 5 523-44 1998 4 3 3 442-50 2000 63 1-2 1-2 5-11 2014 356 174-91 2014 1 2 2 249-71 2018 67 1 1 163-74 2005 410 311-26 2012 191-203