0026-1742 0026-1742 S0026-17422020000300019 10.22201/fm.24484865e.2019.63.3.03 Mexico Mexico México 00 06 2020 00 06 2020 63 3 19 22

1 2012 72 79-86 2 2006 11 1100-17 3 2011 5 380 4 2013 42 1-8 5 2014 7 781-6 6 2007 60 361-72