9874
TF activity generated by both unstimulated and endotoxin-stimulated cells was significantly higher in transplant recipients than in control subjects (P<.05).
 unstimulated, endotoxin-stimulated cells, TF
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:
 unstimulated, endotoxin-stimulated cells, TF