EMMANUEL NGWAKONGNWI. Measuring Health Services Utilization in Ethnic Populations: Ethnicity and Choice of Frameworks. Public Health , [S. l.], v. 2, n. 2, p. 53–58, 2017. Disponível em: http://openventio.us/index.php/PHOJ/article/view/884. Acesso em: 4 sep. 2026.