0188-8897 0188-8897 S0188-88972017000100127 Mexico Mexico 00 04 2017 00 04 2017 27 1 127 129

1978 101-36 2012 185 1994 2 24 24 147-54 2006 22 4 4 241-53 2016 1951 20 2 2 201-19 1995 III 1544-64 R Core Team 2016 1975 2000 407 2010 944