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| Methods | Multicenter randomized clinical trial |
| Participants | Target: 1000 adults who smoke |
| Interventions | Intervention: patrticipats will receive brief, 5‐minute health counseling plus detailed personalized information about the results of a spirometry test Control: participants will receive brief, 5‐minute health counseling |
| Outcomes | Point‐prevalence abstinence, prolonged abstinence |
| Notes | NCT02153047 |
