2227-1899 2227-1899 S2227-18992020000200015 Cuba Cuba 00 06 2020 00 06 2020 14 2 15 33

2020 2017 145-9 2019 13 1 1 2-36 2014 15 S1 S1 101 2018 20 3 3 25-30 2020 2014 2013 2017 33 2016 2016 2017 1-12 Universidad De Oriente 2019 2015 272-89 2020 2017 1-5 2019 111-9 2017 14 13-33