Usage History of 'immunoassays'

The following chart shows how frequently 'immunoassays' appeared in printed materials over time. For example, the word 'immunoassays' occurred 2 times in books in 1944 and 8,274 times in 2008. From 1944 to 2008, the word 'immunoassays' was used a total of 181,213 times in books scanned by Google. See Reference: Google Ngram project.

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