5020
Difference in methylation patterns within the D15S9 region of chromosome 15q11 - 13 in first cousins with Angelman syndrome and Prader - Willi syndrome .
 Angelman syndrome, Prader - Willi syndrome
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Disease 
Text: {0} 
Answer:
 Angelman syndrome, Prader - Willi syndrome