Usage History of 'thoracotomy'

The following chart shows how frequently 'thoracotomy' appeared in printed materials over time. For example, the word 'thoracotomy' occurred 2 times in books in 1882 and 9,401 times in 2008. From 1882 to 2008, the word 'thoracotomy' was used a total of 300,934 times in books scanned by Google. See Reference: Google Ngram project.

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