Warning: file_get_contents(https://ojs.journalbusiness.my/ojs.php): failed to open stream: HTTP request failed! HTTP/1.1 404 Not Found in /var/www/ojs.unud.ac.id_backup/lib/pkp/includes/functions.inc.php on line 4 PRAKASA, Rama Agung et al. Analisis Faktor Risiko Pasien Gagal Jantung dengan Reduced Ejection Fraction di RSUD Dr. H. Abdul Moeloek Provinsi Lampung. Essential: Essence of Scientific Medical Journal, [S.l.], v. 18, n. 1, p. 22-26, aug. 2020. ISSN 2655-6472. Available at: <https://ojs.unud.ac.id/index.php/essential/article/view/53771>. Date accessed: 08 sep. 2026.