Usage History of 'isoantigen'

The following chart shows how frequently 'isoantigen' appeared in printed materials over time. For example, the word 'isoantigen' occurred 8 times in books in 1943 and 21 times in 2008. From 1943 to 2008, the word 'isoantigen' was used a total of 3,804 times in books scanned by Google. See Reference: Google Ngram project.

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