Digital Marketing of Healthcare Products: A Systematic Review of Trust, Engagement, and Commercial Outcomes. International Journal of Economics and Financial Issues, [S. l.], v. 16, n. 1, 2026. DOI: https://doi.cibangsa.org/DOI-2026-351. Disponível em: https://ijefijournal.com/index.php/ijefi/article/view/108. Acesso em: 26 oct. 2026.