WICAKSONO, Sony Hilal. Temuan Gambaran CT Napkin Ring Sign Pada Pasien Asimtomatik. Indonesian Journal of Cardiology, [S. l.], v. 35, n. 3, p. 159–61, 2015. DOI: 10.30701/ijc.v35i3.429. Disponível em: http://ijconline.id/index.php/ijc/article/view/429. Acesso em: 19 oct. 2026.