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Within the PBL , Bcd gene expression was restricted to CD19+ B-cells and absent from CD14+ monocytes and T-cells .
 Bcd, B-cells, CD19+ B-cells, PBL, T-cells, CD14+ monocytes
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:
 Bcd, B-cells, CD19+ B-cells, PBL, T-cells, CD14+ monocytes