20197
Here , we present the results of a genome - wide association study of CP that was carried out in a cohort of 4504 European Americans ( EA ) participating in the Atherosclerosis Risk in Communities ( ARIC ) Study ( mean age - 62 years , moderate CP - 43 % and severe CP - 17 % ) .
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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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