2227-1899 2227-1899 S2227-18992019000400030 México Cuba 00 12 2019 00 12 2019 13 4 30 42

2018 2016 6652-7 2012 2017 20 39 39 55-67 2006 2010 2015 9 3 3 3-8. 2012 153-62 2018 206-9