NTUSI, N. In memoriam: Lionel Henry Opie (06 May 1933 - 20 February 2020). SA Heart Journal, [S. l.], v. 17, n. 1, p. 6–8, 2020. DOI: 10.24170/17-1-4030. Disponível em: https://www.journals.ac.za/SAHJ/article/view/4030. Acesso em: 8 oct. 2025.