XU, Derek. "Placebo and Nocebo" Effect - Explaining the Divergent Impacts of HIV/AIDS Initiatives. Medical Humanities Journal of Boston College, [S. l.], v. 5, n. 1, p. 13–15, 2020. Disponível em: https://ejournals.bc.edu/index.php/mhj/article/view/19697. Acesso em: 1 may. 2026.