1014
This finding underlines the importance of DNA analysis for maternal UPD ( 14 ) in patients with a similar PWS - like phenotype even without previous identification of a Robertsonian translocation involving chromosome 14 . .
 PWS
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Disease 
Text: {0} 
Answer:
 PWS