Pulung Tarigan, Alwinsyah Abidin & Zuhrial Zubir. “CORRELATION BETWEEN SERUM VITAMIN D LEVELS AND CURB 65 ADMISSION IN PATIENTS WITH COMMUNITY ACQUIRED PNEUMONIA AT THE START OF HOSPITAL”. International Journal of Research Science and Management 6, no. 8 (August 30, 2019): 8–13. Accessed December 23, 2024. http://ijrsm.com/index.php/journal-ijrsm/article/view/238.