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We have investigated the association between endometrial cancer and tamoxifen use or other treatments in women treated for breast cancer in a case - control study .
 Disease: endometrial cancer; Chemical: tamoxifen; Disease: breast 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:
 Disease: endometrial cancer; Chemical: tamoxifen; Disease: breast cancer