| What was the smoking cessation product used? | Smoking Cessation Product | Select the smoking cessation product. | CMTRT | CMTRT | CMTRT; CMPRESP; If CMTRT="OTHER" Then CMTRT and CMPRESP are NULL. |
| NICOTINE PATCH; NICOTINE GUM; NICOTINE LOZENGE; NICOTINE INHALER; VARENICLINE; BUPROPION; OTHER |
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