title: Concerns about passive smoking.
mesh_terms: D000393:Air Pollutants / Q000009:adverse effects; D002248:Carbon Monoxide / Q000009:adverse effects; D002318:Cardiovascular Diseases / Q000139:chemically induced; D006801:Humans; D012306:Risk; D014028:Tobacco Smoke Pollution / Q000009:adverse effects* / Q000517:prevention & control
chemical_list: D000393:Air Pollutants; D014028:Tobacco Smoke Pollution; D002248:Carbon Monoxide