title: E-cigarettes: The lingering questions.
authors.forename: Daniel
authors.initials: D
authors.lastname: Cressey
mesh_terms: D000329:Advertising / Q000331:legislation & jurisprudence; D003257:Consumer Product Safety / Q000331:legislation & jurisprudence; D055615:Electrical Equipment and Supplies / Q000009:adverse effects* / Q000600:supply & distribution; D006801:Humans; D009538:Nicotine / Q000009:adverse effects*; D019946:Propylene Glycol / Q000009:adverse effects; D018570:Risk Assessment; D012907:Smoking / Q000009:adverse effects; D000074606:Smoking Prevention; D062789:Tobacco Products; D020340:Tobacco Use Cessation / Q000379:methods*; D035501:Uncertainty; D014481:United States; D014486:United States Food and Drug Administration / Q000331:legislation & jurisprudence
chemical_list: D019946:Propylene Glycol; D009538:Nicotine