1370
Results : The average age of the patients was 35 years and median Body Mass Index was 23 kg / m ( 2 ) ( range 18 - 35 kg / m ( 2 ) ) .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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