On the number of D you reported you smoked cigarettes during the past 30D, how many cigarettes did you smoke per D, on average:Find:30D:^Patient:Ord:PhenX
on the number of d you reported you smoked cigarettes during the past 30d, how many cigarettes did you smoke per d, on average:find:30d:^patient:ord:phenx
On the number of days you reported you smoked cigarettes during the past 30 days, how many cigarettes did you smoke per day, on average [PhenX]
on the number of days you reported you smoked cigarettes during the past 30 days, how many cigarettes did you smoke per day, on average [phenx]