<http://schema.org/description>
"There are many factors that affect tumor invasion, the process where a tumor grows beyond the tissue where it first developed. While factors like genetics, tissue type and environmental exposure affect tumor metastasis and invasion, physical forces like fluid flow remain a poorly understood component of tumor invasion. "^^<http://www.w3.org/2001/XMLSchema#string>
<http://medicalxpress.com/news/2012-07-fluid-cells-affects-tumors.html>