Butar, Yosua Butar, Yetti Hernaningsih, and Narazah Mohd Yusoff. 2022. “The Role of Thromboelastography in Heparin Therapy for COVID-19 Patients”. Jurnal Respirasi 8 (2):119-25. https://doi.org/10.20473/jr.v8-I.2.2022.119-125.