PhenX - tobacco - age of offset use - adolescent protocol 030901:-:Pt:^Patient:-:PhenX
phenx - tobacco - age of offset use - adolescent protocol 030901:-:pt:^patient:-:phenx
PhenX - tobacco - age of offset use - adolescent protocol 030901:-:To identify measures at a point in time:^Patient:-:PhenX
phenx - tobacco - age of offset use - adolescent protocol 030901:-:to identify measures at a point in time:^patient:-:phenx