GUNASEKARAN, V.; SELVARAJ, R. Biological Pacemakers – A Review. International Journal of Cardiovascular Practice, [S. l.], v. 3, n. 1, p. 1–5, 2018. DOI: 10.21859/ijcp-03103. Disponível em: https://journals.sbmu.ac.ir/ijcp/article/view/19066. Acesso em: 16 apr. 2024.