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 Andriyasa, K., & Raka Putra, T. 2014 Apr 29. KORELASI ANTARA DERAJAT BERATNYA OSTEOARTHRITIS LUTUT DAN CARTILAGE OLIGOMERIC MATRIX PROTEIN SERUM. journal of internal medicine. [Online] :