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To facilitate the evaluation of ATM heterozygotes for susceptibility to other diseases , such as breast cancer , we have attempted to define the most common mutations and their frequencies in ataxia - telangiectasia ( A - T ) homozygotes from 10 ethnic populations .
 Disease: breast cancer; Disease: ataxia - telangiectasia; Disease: A - T
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease 
Text: {0} 
Answer:
 Disease: breast cancer; Disease: ataxia - telangiectasia; Disease: A - T