HUGO, J; TEICHLER, M; ELLIS, C; OLIVIER, A. Ronald Ferguson Ingle (1927 - 2022). South African Medical Journal, South Africa, v. 114, n. 8, p. e2492, 2024. DOI: 10.7196/SAMJ.2024.v114i11.2492. Disponível em: https://www.samajournals.co.za/index.php/samj/article/view/2492. Acesso em: 18 apr. 2026.