1727-8120 1727-8120 S1727-81202021000300728 Cuba Cuba 00 12 2021 00 12 2021 21 3 728 748

Ministerio de Salud Pública 2015 2011 2016 16 2 2 2016 12 2 2 2019 19 2 2 2015 19 3 3 2016 2017 2017 2017 2011 22-40 1972 129-61 1985 2012 3ra Ministerio de Educación, Cultura y Deporte 2002 US. Departament of Health and Human Services 2020