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Through 2006 , the NFA hosted six international conferences , featuring authorities on fibromyalgia who presented their research and expertise to attendees , including patients and health care professionals .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities:  
Answer:
 None