0034-7507 0034-7507 S0034-75072021000400008 Cuba Cuba Cuba 00 12 2021 00 12 2021 58 4

1 2019 2 2019 23 5 5 860-74 3 1986 4 1997 35 2 2 5 2000 15 1 1 39-43 6 2012 16 4 4 7 2015 2-6 Nov 2015 La Habana, Cuba 8 2017 19 3 3 9 2018 10 2009 27 4 4 11 2016 12 2016 13 2016 14 2016 15 2016 12 14-8 16 2020 Nov 2020 La Habana, Cuba 17 2014 36 ^sSuppl 1 ^sSuppl 1 Suppl 1 752-62 18 2018 19 2017 22 6 6 759-66 20 2017 22 4 4 97-101