552
Methylation analysis at exon alpha of the small nuclear ribonucleoprotein - associated polypeptide N ( SNRPN ) gene showed a pattern characteristic of only the maternal chromosome 15 in J .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease 
Text: {0} 
Answer:
 None