Usage History of 'collagenase'

The following chart shows how frequently 'collagenase' appeared in printed materials over time. For example, the word 'collagenase' occurred 2 times in books in 1934 and 5,308 times in 2008. From 1934 to 2008, the word 'collagenase' was used a total of 312,641 times in books scanned by Google. See Reference: Google Ngram project.

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