Warning: XSLTProcessor::transformToXml() [xsltprocessor.transformtoxml]: I/O warning : failed to load external entity "file:////srv/scielo/www/bases/xml/enf/v35n4/1561-2961-enf-35-04-e3268.xml" in /srv-new/scielo/www/htdocs/class.XSLTransformerPHP5.php on line 36 Factores asociados al ausentismo laboral de enfermeras