Internal Constraints and Policy Constraints on Conventional X-Rays. Indian Journal of Public Health Research & Development, [S. l.], v. 11, n. 3, p. 1336–1340, 2020. DOI: 10.37506/ijphrd.v11i3.1700. Disponível em: https://medicopublication.com/index.php/ijphrd/article/view/1700. Acesso em: 6 may. 2026.