How does 'holy grail' cancer test work and when will it be available?
by Nicola Davis from Science | The Guardian on (#3RED0)
A new early detection blood test for 10 types of cancer could be used to screen for the disease before symptoms appear
A type of early detection blood test for 10 different types of cancer has been hailed as a "holy grail" by researchers, with experts claiming such "liquid biopsies" could save lives. But how does it work, and when might it be rolled out?
Why do we need early detection of cancers?
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