“Clinical and Epidemiological Profile of Cardiovascular Disease at Rantauprapat Hospital, North Sumatra: A Retrospective Study”. Nusantara Medical Science Journal 11, no. 1 (April 2, 2026): 23–30. Accessed August 1, 2026. https://journal-598.unhas.ac.id/index.php/jmednus/article/view/49990.