1815-7696 1815-7696 S1815-76962021000200506 Cuba 00 06 2021 00 06 2021 19 2 506 523

2019 2013 46 2020 2017 I 188 2003 2 2 2 2020 18 24 24 2000 2003 2017 70 2018 2014 16 2 2 125-33 2017 I 7 2018 140-50 2020 4