11084
Within the erythroid lineage , runt expression is biphasic, clearly present in the erythroblasts of early blood islands and of the fetal liver , but absent in the adult.
 erythroblasts, erythroid lineage
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:
 erythroblasts, erythroid lineage