Do you know the protein map of human spit?

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If you just have to spit instead of bracing for a needle prick, when being tested for cancer, heart disease or any other disease. Usually we have to give our blood through some injection injected in to our nerves and that sucks instead of doing that if you just have to spit in cup wouldn't it be nice. It may soon turn in to reality. A team from five universities in United states claims that it has created protein map of human spit. They claim that they have identified all the 1,116 proteins present in saliva glands. This research may create sensation in future because 1/5th of proteins are available in salivary glands that are present in blood. So in further we have to spit to get tested rather than giving blood.