1405-888X 1405-888X S1405-888X2009000100038 Mexico 00 00 2009 00 00 2009 12 1 38 44

1 1961 4 123-5 2 1982 9 11-5 3 2009 63 325-38 4 1984 294 161-5 5 1984 81 3888-92 6 1978 3 811-9 7 1983 301 517-20 8 2009 233-66 9 1988 233-66 10 1968 168 341-52 11 1968 126 16-26 12 1989 37 675-81 13 1972 47 13-6 14 1991 52 1503-6 15 1992 42 599-601 16 2008 3 17 1987 104 65-71 18 1988 9 654-61 19 1995 358 343-52 20 1983 270 169-73 21 1980 28 1014-7 22 1984 33 72-5 23 1985 33 240-8 24 1987 20 347-55