1727-9933
1727-9933
S1727-99332020000300395
10.15381/rpb.v27i3.17475
Ecuador
Ecuador
Ecuador
Argentina
00
07
2020
00
07
2020
27
3
395
400
[
2012
]
[
1999
275
]
[
2018
99
1
1
1-14
]
[
2007
24
2
2
508-11
]
[
1967
206
]
[
2008
669
]
[
2006
205-23
]
[
1973
15
]
[
2001
82
1
1
138-60
]
[
2016
23
2
2
455-65
]
[
2013
2013
3780
3780
1-36
]
[
2015
50
1
1
40-51
]
[
2017
49
946
946
51-6
]
[
2018
]
[
2017
10
576
]