Facts about secondhand smoke and Oklahoma businesses.
D003132:Commerce / Q000458:organization & administration*; D006801:Humans; D016272:Occupational Health; D009825:Oklahoma / Q000453:epidemiology; D014028:Tobacco Smoke Pollution / Q000009:adverse effects / Q000517:prevention & control* / Q000706:statistics & numerical data; D017132:Workplace
D014028:Tobacco Smoke Pollution