Maryland restricts workplace smoking.
D006331:Heart Diseases / Q000209:etiology; D006801:Humans; D008175:Lung Neoplasms / Q000209:etiology; D008396:Maryland; D016272:Occupational Health / Q000331:legislation & jurisprudence*; D012907:Smoking / Q000009:adverse effects / Q000331:legislation & jurisprudence*; D000074606:Smoking Prevention; D014028:Tobacco Smoke Pollution / Q000009:adverse effects / Q000331:legislation & jurisprudence* / Q000517:prevention & control*
D014028:Tobacco Smoke Pollution