0012-7353 0012-7353 S0012-73532018000200057 10.15446/dyna.v85n205.64798 Cuba Cuba 00 06 2018 00 06 2018 85 205 57 63

[1] 2011 21 1 1 72-9 [2] 2006 39 6 6 565-9 [3] 2011 17 5 5 336-9 [4] 2011 26 8 8 1041-9 [5] 2012 58 1 1 81-91 [6] 2012 4 3 3 [7] 2012 576 576 119-22 [8] 2014 13 13 156-62 [9] 2015 36 36 60-9 [10] 2015 132 132 500-6 [11] 2015 218 218 32-7 [12] 2016 45 45 215-8 [13] 2012 22 22 13-27 [14] 2015 4 9 9 8419-26 [15] 2016 203-210 203-210 1989-96 [16] 1981 [17] ASM 1998 [18] 2006 29 29 867-78 [19] 2005 26 11 11 1202-10 [20] 2004 [21] 2006 1a 276-324