2550-6722 2550-6722 S2550-67222017000100061 Ecuador 00 08 2017 00 08 2017 2 61 72

2011 1933 1956 1986 1962 1977 1 1 2-13 1973 40 1965 1982 Guayaquil, Ecuador 1981 1940 21 21 673-5 1972 37 2 2 156-65 1996 46-7 1960 1971 1994 72-98