1128
The 9-cis RA was generally more effective than all-trans RA in inhibiting HIV production and in combination generally more effective than the single agents alone.
 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:
 None