The Effects of Anthocyanins in Purple Sweet Potato Extract to the Level MDA and NO Sputum Asymptomatic Smokers. Jurnal Respirologi Indonesia, [S. l.], v. 38, n. 2, p. 64–74, 2018. DOI: 10.36497/jri.v38i2.160. Disponível em: http://www.jurnalrespirologi.org/index.php/jri/article/view/160. Acesso em: 6 jul. 2025.