<http://schema.org/description>
"Despite concerns about cobalt and chromium coating debris on metal hip replacements, noted dermatologist says there is little risk that patients will have a skin reaction or joint pain from the devices."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.pfonline.com/blog/post/study-says-metal-orthopedic-implants-unlikely-to-trigger-allergy>