13275
Detection of oestrogen receptor variants in endometrium , myometrium , leiomyoma and peripheral blood mononuclear cells : comparison to variants present in breast cancer .
 ( cell type: peripheral blood mononuclear cells, None) , ( protein: oestrogen receptor variants, 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: peripheral blood mononuclear cells, None) , ( protein: oestrogen receptor variants, None) 