2528-7907
2528-7907
S2528-79072019000100060
10.36097/rsan.v1i33.732
Ecuador
Ecuador
Ecuador
00
09
2019
00
09
2019
33
60
66
[
2010
30(3
110-7
]
[
1976
4(6
232-9
]
[
2018
15(1
5-11
]
[
2017
30(2
23-36
]
[
2015
8(2
165-72
]
[
2018
46(2
185-93
]
[
2014
]
[
2012
50(1
]
[
2018
22(3
]
[
Ohio University
2019
]
[
OMS
2011
]
[
OMS
2018
]
[
2005
43(3
240-51
]
[
2001
38(3
181-91
]
[
2002
117(5
435
]