11233
Tyrosine phosphorylation of Stat3 and, to a lesser extent, Stat1 was also detected following G-CSF stimulation .
 G-CSF, Stat3, Stat1
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:
 G-CSF, Stat3, Stat1