2448-8372 2448-8372 S2448-83722018000100017 10.31836/lh.18.6582 Chile 00 00 2018 00 00 2018 18 17 36

1986 1995 1988 1972 52 416-35 1984 2 1993 1996 2003 1963 1991 1966 1990 5 1991 2007 1999 1990 2001 2014 1991