2074-8647 2074-8647 S2074-86472020000200129 Cuba 00 06 2020 00 06 2020 20 2 129 134

1980 430-47 2016 3 8 8 11-8 2010 29 1 1 61-77 2019 38 2018 11 1 1 18-26 2006 38 4 4 977-98 2018 453-79 2018 18 1 1 15-20 2009 2010 30 31 31 187-201 1998 16 1 1 33-41