KLUG, E; VAN DER BIJL, P. South African Heart Association: Plea for influenza vaccination. South African Medical Journal, South Africa, v. 113, n. 9, p. 14–15, 2023. DOI: 10.7196/SAMJ.2023.v113i9.1204. Disponível em: https://samajournals.co.za/index.php/samj/article/view/1204. Acesso em: 1 dec. 2024.