Usage History of 'opsonins'

The following chart shows how frequently 'opsonins' appeared in printed materials over time. For example, the word 'opsonins' occurred 2 times in books in 1842 and 1,000 times in 2008. From 1842 to 2008, the word 'opsonins' was used a total of 86,880 times in books scanned by Google. See Reference: Google Ngram project.

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