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Worldwide prevalence figures estimate that there are 280 million diabetic patients in 2011 and more than 500 million in 2030 ( http : / / www . diabetesatlas . org / ) .
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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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