0034-7493 0034-7493 S0034-74932019000100011 Mexico 00 03 2019 00 03 2019 58 1

1 2004 7 47-52 2 2011 17 544-51 3 2013 7ma 27-55 4 1991 3 91-8 5 2002 50 213-5 6 2017 1-10 7 1984 71 534-5