Key points from article :
Looks for mutations in 16 genes and eight proteins that regularly arise in cancer.
Blood test detects eight common forms of cancer.
Vision is an annual test designed to catch cancer early and save lives.
Tumours release tiny traces of their mutated DNA and proteins they make into the bloodstream.
Found 70% of cancers in over 1000 patients.
Cancer Seek is now being trialled in people who have not been diagnosed with cancer.
Costs less than US$500 which is around the same price as a colonoscopy.
The study was published in the Science journal.
