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Thus , the " latent period " is suggested to be a state of " epileptic maturation , " rather than a prolonged period of " epileptogenesis , " and therefore the antiepileptogenic therapeutic window may only remain open during the first week after injury , when some delayed cell death may still be preventable .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None