13452
In this study, we investigated the effects of a commonly prescribed anti-inflammatory drug , acetyl salicylic acid ( ASA ), on IL-12 production and Th1 cell development .
 ( protein: IL-12, 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: IL-12, None) 