8804
Specificity was determined using tetanus toxoid , endotoxin , and 3 other autoantigens ( PBC.M2 , Sc170 , and GAD ).
 ( protein: GAD, None) , ( protein: autoantigens, None) , ( protein: Sc170, None) , ( protein: PBC.M2, 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:
 ( protein: GAD, None) , ( protein: autoantigens, None) , ( protein: Sc170, None) , ( protein: PBC.M2, None) 