MAKREXENI, Z. Challenges with international normalised ratio control in paediatric patients with rheumatic heart valve replacement surgery in the Eastern Cape Province, South Africa. SA Heart Journal, [S. l.], v. 22, n. 3, p. 151–154, 2025. DOI: 10.24170/22-03-7428. Disponível em: https://www.journals.ac.za/SAHJ/article/view/7428. Acesso em: 8 oct. 2025.