1990-8644 1990-8644 S1990-86442023000200342 Ecuador 00 04 2023 00 04 2023 19 91 342 349

2017 25 80-90 2011 2008 9 9-10 9-10 935-46 2021 824-7 2007 19 8 8 610-2 2015 16 4 4 585-98 2021 7 3 3 648-55