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A California-based company said its experimental blood test detected many early-stage types of cancer and gave very few false alarms in a study that included people with and without the disease.
Many companies are trying to develop early detection "liquid biopsy" tests that capture DNA fragments that cancer cells shed in the blood.
The new Grail results concern 2,300 people. The test detected 55% of known cancers and triggered false alarms for 1%. He also accurately suggested where the cancer could be about 90% of the time.
The company gave its results Friday in a press release and will report them Saturday at a conference in Chicago. They have not been published or reviewed by other scientists.
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