2444-6483 2444-6483 S2444-64832019000200090 10.24875/end.m19000006 Costa Rica Costa Rica 00 06 2019 00 06 2019 31 2 90 92

1 1980 15 6 6 872-5 2 2018 16 12 12 1864-9 3 1985 201 2 2 180-5 4 2011 43 S 02 S 02 5 2011 17 8 8 1088-90