2nd-hand smoke, 1st-class risk. Tobacco's pollution threatens more than the smoker's heart.
D002318:Cardiovascular Diseases / Q000209:etiology; D006801:Humans; D010353:Patient Education as Topic; D012140:Respiratory Tract Diseases / Q000209:etiology; D012306:Risk; D012907:Smoking / Q000009:adverse effects*; D016540:Smoking Cessation / Q000379:methods / Q000523:psychology*; D014028:Tobacco Smoke Pollution / Q000009:adverse effects* / Q000517:prevention & control; D014481:United States
D014028:Tobacco Smoke Pollution