Mohamadi,H , , Jabalameli,S , , Haghayegh,S A , and Ranjbarkohan,Z . "Structural model for pain self-efficacy based on health oriented lifestyle with mediating role of helplessness in patients with chronic pain", Daneshvar Medicine, 29, 3, 2021, 118-131. doi: 10.22070/daneshmed.2021.13955.1042