0188-9532 0188-9532 S0188-95322017000300524 10.17488/rmib.38.3.2 Ecuador Venezuela Venezuela Venezuela Venezuela 00 12 2017 00 12 2017 38 3 524 536

[1] 2009 1 2 2 98-107 [2] 2015 13 3 3 [3] 2013 49 6 6 [4] 2007 101 1 1 227-49 [5] 2009 25 6 6 1539-60 [6] 2009 29 2 2 67-83 [7] 2014 49 4 4 780-92 [8] 2010 8 8 2252-66 [9] 2015 13 12 12 7314-38 [10] 2016 1 1 69-77 [11] 2000 49 2 2 289-95 [12] 2010 368 368 2065-81 [13] 2006 5 5 109-18 [14] 1998 35 35 16-20 [15] 2007 14 25 [16] 2017 7 2 2 [17] 2005 26 26 5414-26 [18] 2017 28 3 3 223-33 [19] 2017 12 12 2673-87 [20] 2017 [21] 2017 103 103 385-94 [22] 2011 5 6 6 [23] 2009 12 12 197-220 [24] 2008 [25] 2012 90 90 83-90 [26] 2011 22 22 1-9 [27] 2011 7 7 1665.1673 [28] 2007 88 88 569-80 [29] 2006 27 27 6123-37 [30] 2005 16 16 213-9 [31] 2010 75 1 1 1-18 [32] 2007 13 6 6 1205-17 [33] 2012 30 30 338-51 [34] 2011 12 11 11 8217-44 [35] 2004 17 1 1 20-8 [36] 2003 La Habana, Cuba [37] 2011 9 9 66 [38] 2010 7 5 5 S631-47 [39] 1999 248 5411 5411 143-7 [40] 2008 2 5 5 276-85 [41] 2013 14 4 4