A starting point for a new vital sign.
Amundson
E Paul
EP
DAKOTACARE, USA.
D006801:Humans; D011320:Primary Health Care / Q000379:methods; D016540:Smoking Cessation / Q000379:methods*; D013023:South Dakota; D014028:Tobacco Smoke Pollution / Q000517:prevention & control*
D014028:Tobacco Smoke Pollution