0034-7531 0034-7531 S0034-75312019000400001 Cuba 00 12 2019 00 12 2019 91 4 1 2017 21 9 9 2047-60 2 2015 46 2 2 131-43 3 Bonet-Gorbea 2014 40 3 3 418-20 4 2015 48 02 02 29-465 5 2011 19 6 2010 32 ^s7 ^s7 7