1561-3194

1561-3194

S1561-31942023000800013

Ecuador

00 00 2023

00 00 2023

27

1

2017

2

2020 12 4 4

330

3

2018 21 4 4

4

2013 51 3 3

5

2013

6

2018 6 1 1

35-44

7

2017

8

2017 9 2 2

67-77