Suwarniaty, Renny, Mohammad Saifur Rohman, Tinny Endang Hernowati, and Wisnu Barlianto. “Role of Carboxy Terminal Propeptide of Type I and Type III Procollagen (PICP and PIIICP) Toward the Severity Degree of Mitral Valve Regurgitation in Children’s Rheumatic Heart Disease”. Open Access Macedonian Journal of Medical Sciences 8, no. B (September 30, 2020): 802–806. Accessed May 5, 2024. https://oamjms.eu/index.php/mjms/article/view/4798.