0185-3929 0185-3929 S0185-39292015000300207 Mexico 00 09 2015 00 09 2015 36 143 207 231

1791 1785 1980 1980 3 2 1962 2002 2004 2012 2000 20 15-40 1991 2005 23 23 31-44 1908 10 1913 8 1991 1993 1 1 51-75 2005 1991 4 1970 1995