1137-6627 1137-6627 S1137-66272020000100015 10.23938/assn.0781 00 04 2020 00 04 2020 43 1 109 111 2019 42 9-18 2019 2019 322 1996-2016 2017 28 25-31 2017 40 379-89 2017 91 2014 7 139-46 2015 38 9-20 2012 12 2019