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The myotonic dystrophy ( DM ) mutation is an unstable ( CTG ) n repeat , present at a copy number of 5 - 37 repeats on normal chromosomes but amplified to 50 - 3000 copies on DM chromosomes .
 Disease: myotonic dystrophy; Disease: DM; Disease: DM
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: myotonic dystrophy; Disease: DM; Disease: DM