0121-0793 0121-0793 S0121-07932020000200191 10.17533/udea.iatreia.49 Colombia 00 06 2020 00 06 2020 33 2 191 198

1 1979 26 467-78 2 1979 59 37-43 3 1981 29 117-25 4 1985 16 31-6 5 1976 5 ^s5 ^s5 5 69-76 6 1982 8 183-6 7 1983 11 161-8 8 1986 11 52-6 9 1997 10 2010 11 1973