Open Educational Resources <![CDATA[Criterios de Evaluación]]> https://sites.bvsalud.org/rea/paraguay/en/busca/resource/?id=oer.oer.1705 1705 <![CDATA[Epidemiological Proactive Surveillance based on Asterisk and PHP]]> https://sites.bvsalud.org/rea/paraguay/en/busca/resource/?id=oer.oer.1718 1718