1619
Comparing the outcome of the group having histologically normal biopsies with the group having nonspecifically abnormal ones it is concluded that frontal biopsy is not of such high prognostic value as has been claimed in previous reports .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
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