2079-3480
2079-3480
S2079-34802018000200187
Ecuador
Ecuador
00
06
2018
00
06
2018
52
2
187
193
[
2011
23
1
1
]
[
2010
17
3
3
247-52
]
[
2012
19
3
3
196-200
]
[
2017
51
1
1
79-83
]
[
2013
2
162
]
[
2012
]
[
1954
]
[
2015
49
1
1
91-2
]
[
2012
46
369
]
[
2016
54
360-6
]
[
2014
18
3
3
41-7
]
[
2017
51
1-10
]
[
2015
49
1
1
65-8
]
[
2012
13
]
[
NRC
2012
11th ed
]
[
2011
3era Edición
167
]
[
2018
19
4
4
1-5
]
[
2004
13
445-61
]