<http://schema.org/description>
"(HealthDay)\u2014Additional predictors, such as prostate-specific antigen (PSA) density and extent of cancer on biopsy, help guide selection of prostate cancer patients for active surveillance programs, according to research published in the February issue of The Journal of Urology."^^<http://www.w3.org/2001/XMLSchema#string>
<http://medicalxpress.com/news/2014-01-added-prostate-ca-criteria-id.html>