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This was also combined with the technological developments which were taking place , leading to people seeing the body as a machine and therefore understandable , classifiable and repairable , one of the first examples of this was the work of William Harvey in the early seventeenth century .
 William Harvey
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 William Harvey