Uptake of Cost-Free Hepatitis B Vaccination among Healthcare Workers in Northern Tanzania. Tanzania Medical Journal, [S. l.], v. 32, n. 2, p. 39–56, 2021. DOI: 10.4314/tmj.v32i2.424. Disponível em: https://www.tmj.or.tz/index.php/tmj/article/view/424.. Acesso em: 14 may. 2025.