1.
Verachai V. The Pilot study of Effectiveness of Vernonia Cinerea (L) Less for 4 weeks in smoking cessation. ThaiJA [internet]. 2015 Apr. 1 [cited 2026 Sep. 14];3(1-2):1-16. available from: https://he01.tci-thaijo.org/index.php/pmnidat/article/view/248707