OPELOYERU, O. S. . Impoverishing effects of catastrophic health out-of-pocket payments in Nigeria. Studies in Business and Economics, [S. l.], v. 27, n. 1, p. 44–70, 2024. DOI: 10.29117/sbe.2024.0148. Disponível em: https://journals.qu.edu.qa/index.php/SBE/article/view/4067. Acesso em: 20 sep. 2025.