1727-897X

1727-897X

S1727-897X2019000600903

Ecuador

Venezuela

00 12 2019

00 12 2019

17 6 903 906

1

2006

2

2016

3

2017 12 1 1

25

4

2006

5

2008

6

1980

7

1974

8

2018 12 1 1

16

9

2017 19 1 1

20