1870-7203 1870-7203 S1870-72032016000200061 Mexico 00 06 2016 00 06 2016 14 2 61 62 1 2015 41 2 1987 40 5 5 373-83 3 2012 50 12 12 1109-18 4 2012 380 9836 9836 37-43