1561-3003 1561-3003 S1561-30032021000100003 Cuba 00 00 2021 00 00 2021 58 1 2020 31 3 3 2 2017 18 2 2 23-9 3 Redacción Digital de Granma 2021 4 2020 5 2020 57 6 2021 58 7 2017 21 202-11 8 Real Academia Española 2014 23