Blood-based Biopsy Screens Platelets (image) Cell Press Share Print E-Mail Caption This is a visualization of how a blood-based biopsy screens platelets for cancer-linked RNA. Credit Best et al. Usage Restrictions Credit Required. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.