No I was in cancer research and this field isn't new at all. People have been working on it and finding ways to avoid false negatives and positives and increas

No I was in cancer research and this field isn't new at all. People have been working on it and finding ways to avoid false negatives and positives and increased specificity for a long time. Tumor cells shed all kinds of aberrant proteins and glycosylation patterns that you can detect in the blood. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7760063/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7760063/