SAEID , Maryam; TAHER, Mahboobe; VAHEDI , Hamid; HOSSEINKHANZADEH , Abbas Ali. Structural Modeling of Functional Disability Severity Based on Health-Promoting Lifestyle and Distress Tolerance: The Mediating Role of Ego Strength in Patients with Functional Gastrointestinal Disorders. Health Nexus, [S. l.], v. 4, n. 2, p. 1–15, 2026. Disponível em: https://www.journals.kmanpub.com/index.php/Health-Nexus/article/view/5948. Acesso em: 7 sept. 2026.