0185-1667 0185-1667 S0185-16671999000400149 Mexico 00 12 1999 00 12 1999 59 230 149 168

1981 5 5 229-49 1991 241-243 y 261-273 9 9 86-7 1993 1995 55 55 103-29 1988 1989 1990 1996 1996 6 6 77-86 1979 1 1980 3rd 1991 1991 198 198 45-69 1990 267-85 1993 57 3 3 262-93