On the number of D you reported you smoked cigarettes during the past 30D, how many cigarettes did you smoke per D, on average
on the number of d you reported you smoked cigarettes during the past 30d, how many cigarettes did you smoke per d, on average
On the number of D you reported you smoked cigarettes during the past 30D, how many cigarettes did you smoke per D, on average
on the number of d you reported you smoked cigarettes during the past 30d, how many cigarettes did you smoke per d, on average