0034-7523 0034-7523 S0034-75232021000100003 Cuba Cuba 00 03 2021 00 03 2021 60 1 1 2020 56 123 2 2017 30 831-4 3 2020 43 696-703 4 Defining the Role of Authors and Contributors 2020 5 2019 7 48 6 Comité Editorial Revista Infodir C 2020 33 dic dic