METHODS	Subjects received boceprevir ( 800 mg , 3 times daily ) for 6 days and then received PI/r as follows : atazanavir ( ATV ) 300 mg once daily , lopinavir ( LPV ) 400 mg twice daily , or darunavir ( DRV ) 600 mg twice daily , each with ritonavir ( RTV ) 100 mg on days 10-31 , plus concomitant boceprevir on days 25-31 .\