0379-3982 0379-3982 S0379-39822017000400015 10.18845/tm.v30i4.3408 Costa Rica Costa Rica Costa Rica 00 12 2017 00 12 2017 30 4 15 27

[1] Singler Bauder [2] 1997 7 737-50 [3] 2004 [4] 2004 570 [5] 2001 911 [6] 1985 63 155-68 [7] Organización Mundial de la Salud 2007 1 3 3 1-398 [8] 1986 29 285 [9] 2015 219 [10] 2007 [11] 2001 [12] 2016 4.°ESO 41 [13] American Public Health Associations 2012 [14] 2001 Guatemala 149-55 [15] 2013 [16] 2003 7 2 2 47-54 [17] 2012 3 2 2 6-11 [18] 2010 12 3 3 39-44 [19] 2011 [20] 2010 42 1 1 169-84 [21] FAO OMS 2002 [22] 2013 9 17 17 27-37