<https://www.merckmanuals.com/es-us/hogar/multimedia/video/v28483909_es>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<http://schema.org/VideoObject>
<https://www.merckmanuals.com/es-us/hogar/multimedia/video/v28483909_es>