1702
Deletion of the SNRPN promoter / exon 1 region ( the PWS IC element ) appears to impair the establishment of the paternal imprint in the male germ line and leads to PWS .
 PWS, PWS
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Disease 
Text: {0} 
Answer:
 PWS, PWS