Pollack, Andrew, IS [url=https://dgpre.ucn.cl/index.php/events/ultimo-dia-de-clases-taller-y-laboratorios/]https://dgpre.ucn.cl/index.php/events/ultimo-dia-de-clases-taller-y-laboratorios/[/url] (May 17, 2012). "A stem cell-based drug has been approved in Canada."