1405-7743 1405-7743 S1405-77432005000200139 México México 00 06 2005 00 06 2005 6 2 139 146

Aiteco 2003 2001 31-5 Cucei 2003 2001 1978 2000 1993 2003 2003 2003 2001 19-25 2002 1998 1979 2002