Usage History of 'nephrology'

The following chart shows how frequently 'nephrology' appeared in printed materials over time. For example, the word 'nephrology' occurred 2 times in books in 1913 and 6,822 times in 2008. From 1913 to 2008, the word 'nephrology' was used a total of 164,068 times in books scanned by Google. See Reference: Google Ngram project.

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