The Role of Serotonin in Regulating Depression in PTSD Patients (Clinical Study). El-Wahat Journal for Research and Studies, [S. l.], v. 19, n. 01, 2026. Disponível em: https://journals.univ-ghardaia.edu.dz/elwahat/article/view/2071. Acesso em: 17 jun. 2026.