5250
Previously we have shown (W.Q. Jiang, L.Szekely, V.Wendel-Hansen, N.Ringertz, G.Klein, and A. Rosen, Exp.Cell Res.
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 None