2218-3620 2218-3620 S2218-36202021000400294 Cuba Cuba Cuba 00 08 2021 00 08 2021 13 4 294 301

2006 American Cancer Society 2019 2006 7 7 7 596-601 2005 2021 19 2 2 2019 13 1 1 2015 3 2 2 13-26 2012 2015 9 1 1 2017 15 4 4 2015 14 6 6 2006 9 4a 4a 2018 21 51 51 2015 65 6 6 2016 16 1 1 2017 2009 23 4 4 2018 16 2 2