2601
New variant in exon 3 of the proteolipid protein ( PLP ) gene in a family with Pelizaeus - Merzbacher disease .
 Pelizaeus - Merzbacher disease
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Disease 
Text: {0} 
Answer:
 Pelizaeus - Merzbacher disease