2218-3620 2218-3620 S2218-36202020000200178 Perú 00 06 2020 00 06 2020 12 2 178 183

2009 2016 2005 2019 2015 2017 10 14 14 13-28 2015 35 1-7 2017 2018 2015 121-8 2017 2017 10 1 1 175-205 2012 6 8 8 2397-402 2017 2016 2014 2015 Ambato, Ecuador