1815-7696
1815-7696
S1815-76962022000300944
Ecuador
00
09
2022
00
09
2022
20
3
944
952
[
2021
1-13
]
[
2020
2
2
2
]
[
2019
8
250-66
]
[
2019
]
[
2010
8a ed.
]
[
2017
19
75
75
241-6
]
[
2020
]
[
2014
55
11
11
1234-43
]
[
2005
21-8
]
[
2019
8
1
1
952-9
]
[
2019
]
[
MINEDUC
2016
]
[
OMS
1992
(10a ed.)
]
[
2014
31
31
31
331-52
]
[
2017
]
[
2017
1
37
37
]
[
2020
6
4
4
20157-65
]
[
1970
]