Association between happiness, health perception and quality of life of medical students: cross-sectional study. Portuguese Journal of Family Medicine and General Practice, [S. l.], v. 39, n. 5, 2023. DOI: 10.32385/rpmgf.v39i5.13502. Disponível em: https://rpmgf.pt/ojs/index.php/rpmgf/article/view/13502. Acesso em: 18 apr. 2026.