2550-6722
2550-6722
S2550-67222019000200036
Ecuador
00
08
2019
00
08
2019
8
36
51
[
2000
90
2
2
126-30
]
[
1972
62
777-95
]
[
1960
2
2
2
142-4
]
[
1993
21
4
4
324-53
]
[
1988
50
3
3
3-20
]
[
1959
7
311-20
]
[
2008
]
[
1967
]
[
2003
]
[
2019
43
118-30
]
[
2005
25
1
1
5-38
]
[
2007
1
193-219
]
[
1993
]
[
1990
10
1
1
6-29
]
[
1995
]
[
2014
21
2
2
175-92
]
[
1976
38
619-27
]
[
1917
]
[
1918
]
[
1934
]
[
1938
]
[
1945
29
]
[
1949
]
[
1951
]
[
1975
]
[
1944
]
[
1992
]
[
2015
3
3
3
393-420
]
[
1959
]
[
1992
]
[
1903
]