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DESIGN AND METHODS: The effect of all-trans and 9-cis RA on HIV-1 production in T-lymphoid ( H9, CEM ) and monocytoid (U937,THP-1) cell lines was measured during acute and chronic infection .
 ( cell line: monocytoid (U937,THP-1) cell lines, None) , ( cell line: T-lymphoid, None) , ( cell line: H9, CEM, 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 line: monocytoid (U937,THP-1) cell lines, None) , ( cell line: T-lymphoid, None) , ( cell line: H9, CEM, None) 