1980
The aim of this study was to investigate the spontaneous reports of suspected adverse drug reactions , observed in elderly patients ( over 65 years of age ) in Sicily ( Italy ) during the period from 1 January 1995 to 31 December 1997 .
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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:
 None