<http://schema.org/description>
"(HealthDay)\u2014Available screening and identification of human papillomavirus likely contributed to the increased incidences of squamous cell carcinoma of the anal canal (SCCA) and anal carcinoma in situ (CIS) after 1997, according to research published online March 18 in  Journal of Clinical Oncology."^^<http://www.w3.org/2001/XMLSchema#string>
<http://medicalxpress.com/news/2013-04-tracks-patterns-cases-anal-canal.html>