2307-0420 2307-0420 S2307-04202018000100036 10.18004/sopaci.2018.abril.36-37 Paraguay Paraguay Paraguay 00 04 2018 00 04 2018 42 1 36 37

1 2005 25 1 1 93-100 2 2007 59 2 2 122-6 3 2005 73 1 1 19-23 4 2016 68 5 5 363-7 5 2015