0124-0064 0124-0064 S0124-00642017000200276 Peru Peru 00 04 2017 00 04 2017 19 2 276 276 1 2016 18 2 2 188-200 2 2014 31 1 1 30-8 3 2016 27 1 1 37-43 4 2015 78 1 1 1-2 5 2014 31 1 1 39-47