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By means of single - nucleotide polymorphism - array first and then by exome sequencing , we identified a new pathogenic mutation in TRAPPC9 in two Italian sisters born to healthy and apparently nonconsanguineous parents .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None