9109
Recent studies show that human osteoclasts develop in vitro from hematopoietic cells ; however, special cultures conditions and/or cytokine mobilized peripheral blood are apparently required.
 ( cell type: human osteoclasts, None) , ( cell type: hematopoietic cells, 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: human osteoclasts, None) , ( cell type: hematopoietic cells, None) 