1990-8644 1990-8644 S1990-86442021000500473 Cuba 00 10 2021 00 10 2021 17 82 473 483

2010 2017 5 13 13 36-50 2019 17 2 2 222-39 2018 2016 2018 19 1967 2016 47 64-81 2017 52 174-84 2012 2016 2018 5 67 67 2019 17 3 3 437-53 2012 2019 2016 5