11099
One of the potential advantages of autologous PBSCT is the possibility that peripheral blood stem cells ( PBSC ) are less likely to be contaminated by leukemic cells than bone marrow grafts .
 ( cell type: leukemic cells, None) , ( cell type: peripheral blood stem cells, None) , ( cell type: PBSC, 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: leukemic cells, None) , ( cell type: peripheral blood stem cells, None) , ( cell type: PBSC, None) 