Efficacy of Combined Relaxed Deep-Breathing with Chest Mobilization Exercise and Vernonia cinerea-Hard Candy on Smoking Cessation and Oxidative Stress in Active Teenage Smokers, Kanthain, Rungtiwa, Leelarungrayub Jirakrit, Likhitsathian Surinporn, and Natakankitkul Surapol , Pharmacognosy Journal, December 2022, Volume 14, Issue 6, p.720-727, (2022)