2475
METHODS : 302 consecutive patients with BS and 438 patients with other rheumatological conditions were surveyed for the presence or absence of the features of BS by means of a standard form which had been prepared according to ISG criteria .
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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