AKUBA, N. H.; RISDIANA, N. Comparison the level of Standard Deviation of N-N interval (SDNN) among Adolescent in Non Smokers and Smokers in Yogyakarta. JKKI : Jurnal Kedokteran dan Kesehatan Indonesia, [S. l.], v. 9, n. 1, p. 30–34, 2018. DOI: 10.20885/JKKI.Vol9.Iss1.art6. Disponível em: https://jurnal.uii.ac.id/JKKI/article/view/9583. Acesso em: 30 apr. 2024.