1134-8046
1134-8046
S1134-80462020000400010
10.20986/resed.2020.3818/2020
Ecuador
Costa Rica
Argentina
Ecuador
00
08
2020
00
08
2020
27
4
273
277
[
2010
23
5
5
512-22
]
[
2003
71
3
3
192-203
]
[
2019
9
2
2
115-21
]
[
2006
16
10
10
1073-6
]
[
2013
29
11
11
e26-9
]
[
2011
26
3
3
646-9
]
[
2018
15
3
3
168-80
]
[
2008
27
12
12
1224-32
]
[
2010
22
4
4
e424-96
]
[
2006
12
24
24
3793-802
]
[
2004
10
19
19
2901-4
]
[
2017
4
1
]
[
2016
2
]
[
2015
10
8
8
]
[
2015
20
6
6
595-601
]
[
2006
1
273-81
]
[
2019
26
6
6
342-58
]
[
2016
14
3
3
360-70
]
[
Korean J Anesthesiol
2011
61
1
1
79-82
]
[
2010
10
6
6
742-51
]
[
2011
152
3 Suppl
3 Suppl
S2-S15
]
[
2016
13
33-8
]
[
2005
75
8
8
640-4
]
[
2011
61
1
1
79-82
]