3477
OBJECTIVES : To compare the proteomic expression profile between an Epstein - Barr virus - associated NPC cell line ( C666 - 1 ) and a normal NP cell line ( NP69 ) .
 NPC cell line, C666 - 1, NP cell line, NP69
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Anatomy 
Text: {0} 
Answer:
 NPC cell line, C666 - 1, NP cell line, NP69