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We have identified 14 families with ataxia - telangiectasia ( A - T ) in which mutation of the ATM gene is associated with a less severe clinical and cellular phenotype ( approximately 10 % - 15 % of A - T families identified in the United Kingdom ) .
 Disease: ataxia - telangiectasia; Disease: A - T; 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: ataxia - telangiectasia; Disease: A - T; Disease: A - T