1680-0338
1680-0338
S1680-03382022000300013
Ecuador
00
09
2022
00
09
2022
43
3
13
23
[
2021
99
4
4
1158-89
]
[
2020
3
2
2
49-66
]
[
2020
17
14
14
]
[
2015
4
7
7
7-16
]
[
2020
18
6
6
1050-64
]
[
2018
63
1
1
3878-83
]
[
2014
82
1-2
1-2
221-6
]
[
2017
7
4539-48
]
[
2019
]
[
2021
84
3072-90
]
[
2021
6
3
3
15-39
]
[
2018
]
[
OMS
2017
]
[
2018
9
2
2
89-105
]
[
2019
]
[
2017
10
24
24
123-30
]
[
2020
8
5
5
2424-7
]
[
UNE-EN
2019
]
[
2021
11
]
[
2020
10
]
[
2015
22
2
2
148-9
]