1692-8261 1692-8261 S1692-82612020000100032 10.15665/rp.v18i1.2087 Colombia Colombia 00 06 2020 00 06 2020 18 1 32 39

[1] 1994 [2] 2004 [3] 2002 16 6 6 1343-7 [4] 2011 [5] 2010 [6] 1995 [7] 2000 [8] 2005 [9] 2002 Warrendale, Pennsylvania 399-403 [10] 1977 8 4 4 591-6 [11] 2010 89 5 5 986-91 [12] [13] 1974 [14] 1995 33 2 2 239-41 [15] 2012 [16] 2004 363-80 [17] 2004 1 [18] 2004 [19] 2011 [20] 2004 [21] 1993 [22] 1951 196-218 [23] 2008 1-61 [24] 2015 48 276-86 [25] 2016 58 297-310 [26] 2010 38 1 1 512-9