ARISTIZÁBAL BERNAL, Beatriz Helena. Research on developing countries: A multigremial aspect to exploit. Medicina UPB, [S. l.], v. 28, n. 1, p. 13–14, 2009. Disponível em: https://revistas.upb.edu.co/index.php/medicina/article/view/2143. Acesso em: 11 jun. 2026.