366253
A 1997 literature search identified 1,457 cases in the published literature since its discovery in 1924 , however 487 were cited in more than one paper , bringing the total of reported cases to 945 .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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