0253-5785 0253-5785 S0253-57852020000500063 Ecuador Cuba Ecuador Cuba 00 00 2020 00 00 2020 47 63 67

2019 10 10 463 2016 2011 57 57 236-45 1999 46 4 4 327-38 1999 65 9 9 4227-9 2017 36 1 1 95-130