Dr. Elba Caraballo Rivera, deputy director of the Comprehensive Cancer Center at the University of Puerto Rico ( cccupr.org ) By THE STAR STAFF The University of Puerto Rico (UPR) Comprehensive Cancer Center has renewed its call for early colorectal cancer screening amid data showing an alarming rise in diagnoses among younger adults on the island. According to the latest report from the Puerto Rico Central Cancer Registry, colorectal cancer accounted for 11.1% of all cancer cases in men and...