2692
Thymocytes , activated peripheral T lymphocytes , or an activated T-cell clone were used as human partners , respectively, in three independent fusions.
 activated T-cell clone, activated peripheral T lymphocytes, Thymocytes
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:
 activated T-cell clone, activated peripheral T lymphocytes, Thymocytes