8395
Expression studies revealed that HMG-I(Y) is ubiquitously expressed in human tissues that do not express beta-globin , being present in 48 of 50 tissues and six hematopoietic cell lines examined.
 HMG-I(Y), beta-globin, hematopoietic cell lines
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:
 HMG-I(Y), beta-globin, hematopoietic cell lines