Zacharis, Thomas, Georgios Lyrakos, and Vasiliki Z. Zisi. 2020. “Physical Activity and Mental Health in Caregivers of Mental Ill Patients in Greece”. Journal of Human Sport and Exercise 15 (3proc):S848-S855. https://www.jhse.ua.es/article/view/2020-v15-n3-proc-physical-activity-mental-health-caregivers-ment.