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 .
 ( cell type: PB granulocytes, None) , ( cell line: malignant clone, None) , ( cell type: normal granulocytes, None) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: RNA,cell type,protein,cell line,DNA, Arguments type: . 
Text: {0} 
Answer:
 ( cell type: PB granulocytes, None) , ( cell line: malignant clone, None) , ( cell type: normal granulocytes, None) 