Usage History of 'hydrocephaly'

The following chart shows how frequently 'hydrocephaly' appeared in printed materials over time. For example, the word 'hydrocephaly' occurred 2 times in books in 1823 and 747 times in 2008. From 1823 to 2008, the word 'hydrocephaly' was used a total of 39,424 times in books scanned by Google. See Reference: Google Ngram project.

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