9961
This review considers the evidence for different theories of the histogenesis of endometriosis and discusses possible immune factors that may be involved in the pathophysiology of the disease .
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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:
 None