From Service Burden to Burnout: The Protective Role of Supervisory Support Among Internal Medicine Postgraduate Residents in Punjab Teaching Hospitals A Cross-Sectional Survey Running head: Service burden, supervisory support, and burnout in Punjab Intern. Pakistan Journal of Medical & Cardiological Review, [S. l.], v. 5, n. 2, p. 6501–6517, 2026. DOI: 10.66021/pakmcr1381. Disponível em: https://pakjmcr.com/index.php/1/article/view/1381. Acesso em: 15 nov. 2026.