GEUS-CRC test facilitate the diagnosis, prognosis and selection of the best treatment for each patient with chronic lymphocytic leukaemia and colon cancer. GEUS-CRC and GEUS-LB tests are based on the patented GEUS (Genomic and Epigenomic Unified Sequencing) technology which, for the first time, simultaneously and highly reliably analyses genetic and epigenetic biomarkers in a single clinical test.