External quality control program: Experience in the department of Microbiology and Immunology, Muhimbili University College of Health Sciences, Dar es Salaam, Tanzania. Tanzania Medical Journal, [S. l.], v. 19, n. 1, p. 9–11, 2007. DOI: 10.4314/tmj.v19i1.39191. Disponível em: https://tmj.or.tz/index.php/tmj/article/view/19.. Acesso em: 5 apr. 2025.