Study boosts hope of 'liquid biopsies' for cancer screening
 

http://img-s-msn-com.akamaized.net/t...6&q=60&o=f&l=fScientists have the first major evidence that blood tests called liquid biopsies hold promise for screening people for cancer. Hong Kong doctors tried it for a type of head and neck cancer, and boosted early detection and one measure of survival.The...

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