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We used Poisson regression to evaluate relations between two metrics of metolachlor use ( lifetime days , intensity - weighted lifetime days ) and cancer incidence .
 Chemical: metolachlor; Disease: cancer
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Chemical: metolachlor; Disease: cancer