3583
Bcd transcripts were detected in all normal PBL samples tested but not in several malignant human B-cell lines and not in 50% of B-cells from B-CLL patients .
 PBL, Bcd, malignant human B-cell lines, B-cells
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:
 PBL, Bcd, malignant human B-cell lines, B-cells