1561-3194 1561-3194 S1561-31942019000200278 Cuba 00 04 2019 00 04 2019 23 2 278 285

1 2000 14 1 1 48-55 2 2007 9 3 3 1-10 3 2012 19 4 1995 70 ^s7 ^s7 7 S21-s28 5 1996 6 2010 7 2014 8 1996 9 2008 7 2 2 10 2002 11 1998 12 2011 13 2017 6 1 1 14 2008 15 2003