The Predictive Role of Happiness, Optimism and Demographical Status in Engagement in Health-related Behaviors. Knowledge and Health in Basic Medical Sciences, [S. l.], v. 8, n. 1, p. 17–23, 2013. DOI: 10.22100/jkh.v8i1.39. Disponível em: https://knh.shmu.ac.ir/index.php/site/article/view/39.. Acesso em: 22 jul. 2024.