Response to Letter to the editor by Benmarhnia T, Leas E, Hendrickson E, Trinidad D, Strong D, Pierce J. The potential influence of regulatory environment for e-cigarettes on the effectiveness of e-cigarettes for smoking cessation: different reasons to temper the conclusions from inadequate data. Visit link: Response to Letter to the editor by Benmarhnia T, Leas E, Hendrickson E, Trinidad D, Strong D, Pierce J. The potential influence of regulatory environment for e-cigarettes on the effectiveness of e-cigarettes for smoking cessation: different reasons to temper the conclusions from inadequate data.