For how many H per D were you exposed to smoke from other peoples cigarettes or tobacco products during this time at this location:NRat:Pt:^Patient:Qn:PhenX
for how many h per d were you exposed to smoke from other peoples cigarettes or tobacco products during this time at this location:nrat:pt:^patient:qn:phenx
For how many H per D were you exposed to smoke from other peoples cigarettes or tobacco products during this time at this location:NRat:Pt:^Patient:Qn:PhenX
for how many h per d were you exposed to smoke from other peoples cigarettes or tobacco products during this time at this location:nrat:pt:^patient:qn:phenx