3737
Loss of heterozygosity in PB granulocytes would be masked by the presence of significant numbers of normal granulocytes not derived from the malignant clone .
 PB granulocytes, malignant clone, normal granulocytes
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:
 PB granulocytes, malignant clone, normal granulocytes