8686
The conventional means of studying Epstein-Barr virus (EBV)-induced cytotoxic T-lymphocyte (CTL) memory , by in vitro stimulation with the latently infected autologous lymphoblastoid cell line ( LCL ), has important limitations.
 lymphoblastoid cell line, LCL, cytotoxic T-lymphocyte
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:
 lymphoblastoid cell line, LCL, cytotoxic T-lymphocyte