Researchers have developed a non-invasive blood test that can screen eight common types of cancer long before symptoms appear. Johns Hopkins Kimmel Cancer Center researchers said the test called CancerSEEK is a unique non-invasive multi-analyte test that simultaneously evaluates levels of eight cancer proteins and the presence of cancer gene mutations from circulating DNA in the blood. The blood test might help to identify the location of the cancer. Senior author Nickolas Papadopoulos said The use of a combination of selected biomarkers for early detection has the potential to change the way we screen for cancer and is based on