1409-3871
1409-3871
S1409-38712020000200257
10.15517/lank.v20i2.43556
Ecuador
Ecuador
Ecuador
00
08
2020
00
08
2020
20
2
257
262
[
2018
343
1
1
75-81
]
[
2019
19
2
2
99-105
]
[
2018
18
3
3
183-8
]
[
2005
95
5
5
764-72
]
[
2012
441-522
]
[
2014
24-6
]
[
2016
16
2
2
219-41
]
[
1996
61
1-255
]
[
2015
201
1
1
50-62
]
[
2018
375
3
3
221-8
]
[
2019
422
3
3
255-72
]